Home / 487,557.60-731,077.20-206,757.60

Finding the Fourth Proportional to 487,557.60, 731,077.20 and 206,757.60

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Solution

The fourth proportional to 487,557.60, 731,077.20 and 206,757.60 is: 310,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,557.60 : 731,077.20 = 206,757.60 : x
  2. Step 2: Convert to fraction form
    487,557.60/731,077.20 = 206,757.60/x
  3. Step 3: Cross multiply
    487,557.60x = 731,077.20 × 206,757.60
  4. Step 4: Simplify right side
    487,557.60x = 151,155,767,286.72
  5. Step 5: Solve for x
    x = 151,155,767,286.72/487,557.60
  6. Step 6: Final answer
    x = 310,026.48

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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.