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Finding the Fourth Proportional to 453,757.70, 680,636.55 and 424,233.20

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Solution

The fourth proportional to 453,757.70, 680,636.55 and 424,233.20 is: 636,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,757.70 : 680,636.55 = 424,233.20 : x
  2. Step 2: Convert to fraction form
    453,757.70/680,636.55 = 424,233.20/x
  3. Step 3: Cross multiply
    453,757.70x = 680,636.55 × 424,233.20
  4. Step 4: Simplify right side
    453,757.70x = 288,748,621,643.46
  5. Step 5: Solve for x
    x = 288,748,621,643.46/453,757.70
  6. Step 6: Final answer
    x = 636,349.80

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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.