Home / 748,871.40-1,123,307.10-327,700.20

Finding the Fourth Proportional to 748,871.40, 1,123,307.10 and 327,700.20

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Solution

The fourth proportional to 748,871.40, 1,123,307.10 and 327,700.20 is: 491,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,871.40 : 1,123,307.10 = 327,700.20 : x
  2. Step 2: Convert to fraction form
    748,871.40/1,123,307.10 = 327,700.20/x
  3. Step 3: Cross multiply
    748,871.40x = 1,123,307.10 × 327,700.20
  4. Step 4: Simplify right side
    748,871.40x = 368,107,961,331.42
  5. Step 5: Solve for x
    x = 368,107,961,331.42/748,871.40
  6. Step 6: Final answer
    x = 491,550.30

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Half scale
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Double scale
Find fourth proportional to 748,872.40, 1,123,308.60 and 327,701.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.