Home / 748,082.40-1,122,123.60-519,759.60

Finding the Fourth Proportional to 748,082.40, 1,122,123.60 and 519,759.60

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Solution

The fourth proportional to 748,082.40, 1,122,123.60 and 519,759.60 is: 779,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,082.40 : 1,122,123.60 = 519,759.60 : x
  2. Step 2: Convert to fraction form
    748,082.40/1,122,123.60 = 519,759.60/x
  3. Step 3: Cross multiply
    748,082.40x = 1,122,123.60 × 519,759.60
  4. Step 4: Simplify right side
    748,082.40x = 583,234,513,486.56
  5. Step 5: Solve for x
    x = 583,234,513,486.56/748,082.40
  6. Step 6: Final answer
    x = 779,639.40

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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.