Home / 486,929.70-730,394.55-479,931.30

Finding the Fourth Proportional to 486,929.70, 730,394.55 and 479,931.30

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Solution

The fourth proportional to 486,929.70, 730,394.55 and 479,931.30 is: 719,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,929.70 : 730,394.55 = 479,931.30 : x
  2. Step 2: Convert to fraction form
    486,929.70/730,394.55 = 479,931.30/x
  3. Step 3: Cross multiply
    486,929.70x = 730,394.55 × 479,931.30
  4. Step 4: Simplify right side
    486,929.70x = 350,539,205,894.42
  5. Step 5: Solve for x
    x = 350,539,205,894.42/486,929.70
  6. Step 6: Final answer
    x = 719,896.95

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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.