Home / 1,172,749.72-1,618,258.08-656,531.88

Finding the Fourth Proportional to 1,172,749.72, 1,618,258.08 and 656,531.88

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Solution

The fourth proportional to 1,172,749.72, 1,618,258.08 and 656,531.88 is: 905,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,749.72 : 1,618,258.08 = 656,531.88 : x
  2. Step 2: Convert to fraction form
    1,172,749.72/1,618,258.08 = 656,531.88/x
  3. Step 3: Cross multiply
    1,172,749.72x = 1,618,258.08 × 656,531.88
  4. Step 4: Simplify right side
    1,172,749.72x = 1,062,438,019,587.59
  5. Step 5: Solve for x
    x = 1,062,438,019,587.59/1,172,749.72
  6. Step 6: Final answer
    x = 905,937.56

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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.