Home / 778,864.20-1,168,624.38-424,132.80

Finding the Fourth Proportional to 778,864.20, 1,168,624.38 and 424,132.80

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Solution

The fourth proportional to 778,864.20, 1,168,624.38 and 424,132.80 is: 636,377.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,864.20 : 1,168,624.38 = 424,132.80 : x
  2. Step 2: Convert to fraction form
    778,864.20/1,168,624.38 = 424,132.80/x
  3. Step 3: Cross multiply
    778,864.20x = 1,168,624.38 × 424,132.80
  4. Step 4: Simplify right side
    778,864.20x = 495,651,930,437.66
  5. Step 5: Solve for x
    x = 495,651,930,437.66/778,864.20
  6. Step 6: Final answer
    x = 636,377.86

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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.