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Finding the Fourth Proportional to 458,906.70, 687,922.65 and 357,648.60

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Solution

The fourth proportional to 458,906.70, 687,922.65 and 357,648.60 is: 536,132.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,906.70 : 687,922.65 = 357,648.60 : x
  2. Step 2: Convert to fraction form
    458,906.70/687,922.65 = 357,648.60/x
  3. Step 3: Cross multiply
    458,906.70x = 687,922.65 × 357,648.60
  4. Step 4: Simplify right side
    458,906.70x = 246,034,572,680.79
  5. Step 5: Solve for x
    x = 246,034,572,680.79/458,906.70
  6. Step 6: Final answer
    x = 536,132.01

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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.