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Finding the Fourth Proportional to 438,366.80, 656,167.80 and 424,542.80

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Solution

The fourth proportional to 438,366.80, 656,167.80 and 424,542.80 is: 635,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,366.80 : 656,167.80 = 424,542.80 : x
  2. Step 2: Convert to fraction form
    438,366.80/656,167.80 = 424,542.80/x
  3. Step 3: Cross multiply
    438,366.80x = 656,167.80 × 424,542.80
  4. Step 4: Simplify right side
    438,366.80x = 278,571,315,081.84
  5. Step 5: Solve for x
    x = 278,571,315,081.84/438,366.80
  6. Step 6: Final answer
    x = 635,475.39

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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.