Home / 985,217.64-1,359,581.12-555,489.42

Finding the Fourth Proportional to 985,217.64, 1,359,581.12 and 555,489.42

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Solution

The fourth proportional to 985,217.64, 1,359,581.12 and 555,489.42 is: 766,564.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,217.64 : 1,359,581.12 = 555,489.42 : x
  2. Step 2: Convert to fraction form
    985,217.64/1,359,581.12 = 555,489.42/x
  3. Step 3: Cross multiply
    985,217.64x = 1,359,581.12 × 555,489.42
  4. Step 4: Simplify right side
    985,217.64x = 755,232,927,791.75
  5. Step 5: Solve for x
    x = 755,232,927,791.75/985,217.64
  6. Step 6: Final answer
    x = 766,564.56

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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.