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Finding the Fourth Proportional to 658,363.90, 986,954.55 and 259,276.90

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Solution

The fourth proportional to 658,363.90, 986,954.55 and 259,276.90 is: 388,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,363.90 : 986,954.55 = 259,276.90 : x
  2. Step 2: Convert to fraction form
    658,363.90/986,954.55 = 259,276.90/x
  3. Step 3: Cross multiply
    658,363.90x = 986,954.55 × 259,276.90
  4. Step 4: Simplify right side
    658,363.90x = 255,894,516,164.90
  5. Step 5: Solve for x
    x = 255,894,516,164.90/658,363.90
  6. Step 6: Final answer
    x = 388,682.48

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Similar ratio
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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.