Home / 627,200.35-865,508.76-355,262.79

Finding the Fourth Proportional to 627,200.35, 865,508.76 and 355,262.79

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Solution

The fourth proportional to 627,200.35, 865,508.76 and 355,262.79 is: 490,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,200.35 : 865,508.76 = 355,262.79 : x
  2. Step 2: Convert to fraction form
    627,200.35/865,508.76 = 355,262.79/x
  3. Step 3: Cross multiply
    627,200.35x = 865,508.76 × 355,262.79
  4. Step 4: Simplify right side
    627,200.35x = 307,483,060,092.70
  5. Step 5: Solve for x
    x = 307,483,060,092.70/627,200.35
  6. Step 6: Final answer
    x = 490,246.95

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1.5x scale

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.