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Finding the Fourth Proportional to 650,543.40, 975,815.10 and 472,213.80

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Solution

The fourth proportional to 650,543.40, 975,815.10 and 472,213.80 is: 708,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,543.40 : 975,815.10 = 472,213.80 : x
  2. Step 2: Convert to fraction form
    650,543.40/975,815.10 = 472,213.80/x
  3. Step 3: Cross multiply
    650,543.40x = 975,815.10 × 472,213.80
  4. Step 4: Simplify right side
    650,543.40x = 460,793,356,468.38
  5. Step 5: Solve for x
    x = 460,793,356,468.38/650,543.40
  6. Step 6: Final answer
    x = 708,320.70

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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.