Home / 976,908.42-1,347,460.52-687,134.57

Finding the Fourth Proportional to 976,908.42, 1,347,460.52 and 687,134.57

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Solution

The fourth proportional to 976,908.42, 1,347,460.52 and 687,134.57 is: 947,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,908.42 : 1,347,460.52 = 687,134.57 : x
  2. Step 2: Convert to fraction form
    976,908.42/1,347,460.52 = 687,134.57/x
  3. Step 3: Cross multiply
    976,908.42x = 1,347,460.52 × 687,134.57
  4. Step 4: Simplify right side
    976,908.42x = 925,886,694,829.20
  5. Step 5: Solve for x
    x = 925,886,694,829.20/976,908.42
  6. Step 6: Final answer
    x = 947,772.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.