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Finding the Fourth Proportional to 497,681.20, 746,521.80 and 456,346.90

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Solution

The fourth proportional to 497,681.20, 746,521.80 and 456,346.90 is: 684,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,681.20 : 746,521.80 = 456,346.90 : x
  2. Step 2: Convert to fraction form
    497,681.20/746,521.80 = 456,346.90/x
  3. Step 3: Cross multiply
    497,681.20x = 746,521.80 × 456,346.90
  4. Step 4: Simplify right side
    497,681.20x = 340,672,909,212.42
  5. Step 5: Solve for x
    x = 340,672,909,212.42/497,681.20
  6. Step 6: Final answer
    x = 684,520.35

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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.