Home / 453,856.20-680,784.30-424,331.70

Finding the Fourth Proportional to 453,856.20, 680,784.30 and 424,331.70

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Solution

The fourth proportional to 453,856.20, 680,784.30 and 424,331.70 is: 636,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,856.20 : 680,784.30 = 424,331.70 : x
  2. Step 2: Convert to fraction form
    453,856.20/680,784.30 = 424,331.70/x
  3. Step 3: Cross multiply
    453,856.20x = 680,784.30 × 424,331.70
  4. Step 4: Simplify right side
    453,856.20x = 288,878,359,352.31
  5. Step 5: Solve for x
    x = 288,878,359,352.31/453,856.20
  6. Step 6: Final answer
    x = 636,497.55

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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.