Home / 748,842.20-1,123,263.30-328,938.20

Finding the Fourth Proportional to 748,842.20, 1,123,263.30 and 328,938.20

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Solution

The fourth proportional to 748,842.20, 1,123,263.30 and 328,938.20 is: 493,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,842.20 : 1,123,263.30 = 328,938.20 : x
  2. Step 2: Convert to fraction form
    748,842.20/1,123,263.30 = 328,938.20/x
  3. Step 3: Cross multiply
    748,842.20x = 1,123,263.30 × 328,938.20
  4. Step 4: Simplify right side
    748,842.20x = 369,484,208,028.06
  5. Step 5: Solve for x
    x = 369,484,208,028.06/748,842.20
  6. Step 6: Final answer
    x = 493,407.30

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Half scale
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Double scale
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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.