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Finding the Fourth Proportional to 453,755.20, 680,632.80 and 424,230.70

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Solution

The fourth proportional to 453,755.20, 680,632.80 and 424,230.70 is: 636,346.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,755.20 : 680,632.80 = 424,230.70 : x
  2. Step 2: Convert to fraction form
    453,755.20/680,632.80 = 424,230.70/x
  3. Step 3: Cross multiply
    453,755.20x = 680,632.80 × 424,230.70
  4. Step 4: Simplify right side
    453,755.20x = 288,745,329,186.96
  5. Step 5: Solve for x
    x = 288,745,329,186.96/453,755.20
  6. Step 6: Final answer
    x = 636,346.05

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1.5x scale

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.