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Finding the Fourth Proportional to 538,445.60, 807,668.40 and 531,447.20

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Solution

The fourth proportional to 538,445.60, 807,668.40 and 531,447.20 is: 797,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,445.60 : 807,668.40 = 531,447.20 : x
  2. Step 2: Convert to fraction form
    538,445.60/807,668.40 = 531,447.20/x
  3. Step 3: Cross multiply
    538,445.60x = 807,668.40 × 531,447.20
  4. Step 4: Simplify right side
    538,445.60x = 429,233,109,708.48
  5. Step 5: Solve for x
    x = 429,233,109,708.48/538,445.60
  6. Step 6: Final answer
    x = 797,170.80

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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.