Home / 748,868.40-1,123,307.40-299,626.80

Finding the Fourth Proportional to 748,868.40, 1,123,307.40 and 299,626.80

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Solution

The fourth proportional to 748,868.40, 1,123,307.40 and 299,626.80 is: 449,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,868.40 : 1,123,307.40 = 299,626.80 : x
  2. Step 2: Convert to fraction form
    748,868.40/1,123,307.40 = 299,626.80/x
  3. Step 3: Cross multiply
    748,868.40x = 1,123,307.40 × 299,626.80
  4. Step 4: Simplify right side
    748,868.40x = 336,573,001,678.32
  5. Step 5: Solve for x
    x = 336,573,001,678.32/748,868.40
  6. Step 6: Final answer
    x = 449,442.12

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Double scale
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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.