Home / 687,258.32-948,373.25-415,165.14

Finding the Fourth Proportional to 687,258.32, 948,373.25 and 415,165.14

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Solution

The fourth proportional to 687,258.32, 948,373.25 and 415,165.14 is: 572,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,258.32 : 948,373.25 = 415,165.14 : x
  2. Step 2: Convert to fraction form
    687,258.32/948,373.25 = 415,165.14/x
  3. Step 3: Cross multiply
    687,258.32x = 948,373.25 × 415,165.14
  4. Step 4: Simplify right side
    687,258.32x = 393,731,511,032.68
  5. Step 5: Solve for x
    x = 393,731,511,032.68/687,258.32
  6. Step 6: Final answer
    x = 572,901.78

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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.