Home / 778,622.66-1,167,909.36-329,221.52

Finding the Fourth Proportional to 778,622.66, 1,167,909.36 and 329,221.52

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Solution

The fourth proportional to 778,622.66, 1,167,909.36 and 329,221.52 is: 493,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,622.66 : 1,167,909.36 = 329,221.52 : x
  2. Step 2: Convert to fraction form
    778,622.66/1,167,909.36 = 329,221.52/x
  3. Step 3: Cross multiply
    778,622.66x = 1,167,909.36 × 329,221.52
  4. Step 4: Simplify right side
    778,622.66x = 384,500,894,721.43
  5. Step 5: Solve for x
    x = 384,500,894,721.43/778,622.66
  6. Step 6: Final answer
    x = 493,821.87

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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.