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Finding the Fourth Proportional to 551,668.20, 827,502.30 and 458,356.20

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Solution

The fourth proportional to 551,668.20, 827,502.30 and 458,356.20 is: 687,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,668.20 : 827,502.30 = 458,356.20 : x
  2. Step 2: Convert to fraction form
    551,668.20/827,502.30 = 458,356.20/x
  3. Step 3: Cross multiply
    551,668.20x = 827,502.30 × 458,356.20
  4. Step 4: Simplify right side
    551,668.20x = 379,290,809,719.26
  5. Step 5: Solve for x
    x = 379,290,809,719.26/551,668.20
  6. Step 6: Final answer
    x = 687,534.30

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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.