Home / 758,329.28-1,132,577.40-687,109.76

Finding the Fourth Proportional to 758,329.28, 1,132,577.40 and 687,109.76

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Solution

The fourth proportional to 758,329.28, 1,132,577.40 and 687,109.76 is: 1,026,209.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,329.28 : 1,132,577.40 = 687,109.76 : x
  2. Step 2: Convert to fraction form
    758,329.28/1,132,577.40 = 687,109.76/x
  3. Step 3: Cross multiply
    758,329.28x = 1,132,577.40 × 687,109.76
  4. Step 4: Simplify right side
    758,329.28x = 778,204,985,495.42
  5. Step 5: Solve for x
    x = 778,204,985,495.42/758,329.28
  6. Step 6: Final answer
    x = 1,026,209.86

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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.