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Finding the Fourth Proportional to 688,452.62, 950,061.54 and 382,578.80

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Solution

The fourth proportional to 688,452.62, 950,061.54 and 382,578.80 is: 527,957.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,452.62 : 950,061.54 = 382,578.80 : x
  2. Step 2: Convert to fraction form
    688,452.62/950,061.54 = 382,578.80/x
  3. Step 3: Cross multiply
    688,452.62x = 950,061.54 × 382,578.80
  4. Step 4: Simplify right side
    688,452.62x = 363,473,403,899.35
  5. Step 5: Solve for x
    x = 363,473,403,899.35/688,452.62
  6. Step 6: Final answer
    x = 527,957.03

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Double scale
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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.