Home / 1,600,691.60-2,209,144.92-921,760.40

Finding the Fourth Proportional to 1,600,691.60, 2,209,144.92 and 921,760.40

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Solution

The fourth proportional to 1,600,691.60, 2,209,144.92 and 921,760.40 is: 1,272,139.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600,691.60 : 2,209,144.92 = 921,760.40 : x
  2. Step 2: Convert to fraction form
    1,600,691.60/2,209,144.92 = 921,760.40/x
  3. Step 3: Cross multiply
    1,600,691.60x = 2,209,144.92 × 921,760.40
  4. Step 4: Simplify right side
    1,600,691.60x = 2,036,302,305,117.17
  5. Step 5: Solve for x
    x = 2,036,302,305,117.17/1,600,691.60
  6. Step 6: Final answer
    x = 1,272,139.06

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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.