Home / 1,400,926.06-2,098,854.86-643,401.20

Finding the Fourth Proportional to 1,400,926.06, 2,098,854.86 and 643,401.20

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Solution

The fourth proportional to 1,400,926.06, 2,098,854.86 and 643,401.20 is: 963,937.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,926.06 : 2,098,854.86 = 643,401.20 : x
  2. Step 2: Convert to fraction form
    1,400,926.06/2,098,854.86 = 643,401.20/x
  3. Step 3: Cross multiply
    1,400,926.06x = 2,098,854.86 × 643,401.20
  4. Step 4: Simplify right side
    1,400,926.06x = 1,350,405,737,105.63
  5. Step 5: Solve for x
    x = 1,350,405,737,105.63/1,400,926.06
  6. Step 6: Final answer
    x = 963,937.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.