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Finding the Fourth Proportional to 490,953.20, 736,429.80 and 397,641.20

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Solution

The fourth proportional to 490,953.20, 736,429.80 and 397,641.20 is: 596,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,953.20 : 736,429.80 = 397,641.20 : x
  2. Step 2: Convert to fraction form
    490,953.20/736,429.80 = 397,641.20/x
  3. Step 3: Cross multiply
    490,953.20x = 736,429.80 × 397,641.20
  4. Step 4: Simplify right side
    490,953.20x = 292,834,829,387.76
  5. Step 5: Solve for x
    x = 292,834,829,387.76/490,953.20
  6. Step 6: Final answer
    x = 596,461.80

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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.