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Finding the Fourth Proportional to 658,847.70, 988,271.55 and 410,015.70

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Solution

The fourth proportional to 658,847.70, 988,271.55 and 410,015.70 is: 615,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,847.70 : 988,271.55 = 410,015.70 : x
  2. Step 2: Convert to fraction form
    658,847.70/988,271.55 = 410,015.70/x
  3. Step 3: Cross multiply
    658,847.70x = 988,271.55 × 410,015.70
  4. Step 4: Simplify right side
    658,847.70x = 405,206,851,363.34
  5. Step 5: Solve for x
    x = 405,206,851,363.34/658,847.70
  6. Step 6: Final answer
    x = 615,023.55

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Similar ratio
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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.