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Finding the Fourth Proportional to 478,542.83, 715,170.30 and 450,888.20

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Solution

The fourth proportional to 478,542.83, 715,170.30 and 450,888.20 is: 673,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,542.83 : 715,170.30 = 450,888.20 : x
  2. Step 2: Convert to fraction form
    478,542.83/715,170.30 = 450,888.20/x
  3. Step 3: Cross multiply
    478,542.83x = 715,170.30 × 450,888.20
  4. Step 4: Simplify right side
    478,542.83x = 322,461,849,260.46
  5. Step 5: Solve for x
    x = 322,461,849,260.46/478,542.83
  6. Step 6: Final answer
    x = 673,841.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.