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Finding the Fourth Proportional to 478,577.80, 717,866.70 and 310,616.20

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Solution

The fourth proportional to 478,577.80, 717,866.70 and 310,616.20 is: 465,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,577.80 : 717,866.70 = 310,616.20 : x
  2. Step 2: Convert to fraction form
    478,577.80/717,866.70 = 310,616.20/x
  3. Step 3: Cross multiply
    478,577.80x = 717,866.70 × 310,616.20
  4. Step 4: Simplify right side
    478,577.80x = 222,981,026,460.54
  5. Step 5: Solve for x
    x = 222,981,026,460.54/478,577.80
  6. Step 6: Final answer
    x = 465,924.30

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Similar ratio
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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.