Home / 688,930.11-1,033,418.47-239,654.86

Finding the Fourth Proportional to 688,930.11, 1,033,418.47 and 239,654.86

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Solution

The fourth proportional to 688,930.11, 1,033,418.47 and 239,654.86 is: 359,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,930.11 : 1,033,418.47 = 239,654.86 : x
  2. Step 2: Convert to fraction form
    688,930.11/1,033,418.47 = 239,654.86/x
  3. Step 3: Cross multiply
    688,930.11x = 1,033,418.47 × 239,654.86
  4. Step 4: Simplify right side
    688,930.11x = 247,663,753,582.17
  5. Step 5: Solve for x
    x = 247,663,753,582.17/688,930.11
  6. Step 6: Final answer
    x = 359,490.39

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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.