Home / 1,267,229.40-1,897,344.90-987,293.40

Finding the Fourth Proportional to 1,267,229.40, 1,897,344.90 and 987,293.40

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Solution

The fourth proportional to 1,267,229.40, 1,897,344.90 and 987,293.40 is: 1,478,213.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,229.40 : 1,897,344.90 = 987,293.40 : x
  2. Step 2: Convert to fraction form
    1,267,229.40/1,897,344.90 = 987,293.40/x
  3. Step 3: Cross multiply
    1,267,229.40x = 1,897,344.90 × 987,293.40
  4. Step 4: Simplify right side
    1,267,229.40x = 1,873,236,097,293.66
  5. Step 5: Solve for x
    x = 1,873,236,097,293.66/1,267,229.40
  6. Step 6: Final answer
    x = 1,478,213.89

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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.