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Finding the Fourth Proportional to 658,086.49, 986,987.13 and 384,349.74

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Solution

The fourth proportional to 658,086.49, 986,987.13 and 384,349.74 is: 576,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,086.49 : 986,987.13 = 384,349.74 : x
  2. Step 2: Convert to fraction form
    658,086.49/986,987.13 = 384,349.74/x
  3. Step 3: Cross multiply
    658,086.49x = 986,987.13 × 384,349.74
  4. Step 4: Simplify right side
    658,086.49x = 379,348,246,798.85
  5. Step 5: Solve for x
    x = 379,348,246,798.85/658,086.49
  6. Step 6: Final answer
    x = 576,441.32

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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.