Home / 765,107.60-1,056,051.24-538,854.80

Finding the Fourth Proportional to 765,107.60, 1,056,051.24 and 538,854.80

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Solution

The fourth proportional to 765,107.60, 1,056,051.24 and 538,854.80 is: 743,762.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,107.60 : 1,056,051.24 = 538,854.80 : x
  2. Step 2: Convert to fraction form
    765,107.60/1,056,051.24 = 538,854.80/x
  3. Step 3: Cross multiply
    765,107.60x = 1,056,051.24 × 538,854.80
  4. Step 4: Simplify right side
    765,107.60x = 569,058,279,719.95
  5. Step 5: Solve for x
    x = 569,058,279,719.95/765,107.60
  6. Step 6: Final answer
    x = 743,762.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.