Home / 1,987,124.20-2,982,663.90-922,407.40

Finding the Fourth Proportional to 1,987,124.20, 2,982,663.90 and 922,407.40

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Solution

The fourth proportional to 1,987,124.20, 2,982,663.90 and 922,407.40 is: 1,384,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,124.20 : 2,982,663.90 = 922,407.40 : x
  2. Step 2: Convert to fraction form
    1,987,124.20/2,982,663.90 = 922,407.40/x
  3. Step 3: Cross multiply
    1,987,124.20x = 2,982,663.90 × 922,407.40
  4. Step 4: Simplify right side
    1,987,124.20x = 2,751,231,253,072.86
  5. Step 5: Solve for x
    x = 2,751,231,253,072.86/1,987,124.20
  6. Step 6: Final answer
    x = 1,384,529.09

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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.