Home / 1,987,123.70-2,982,663.15-922,406.90

Finding the Fourth Proportional to 1,987,123.70, 2,982,663.15 and 922,406.90

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Solution

The fourth proportional to 1,987,123.70, 2,982,663.15 and 922,406.90 is: 1,384,528.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,123.70 : 2,982,663.15 = 922,406.90 : x
  2. Step 2: Convert to fraction form
    1,987,123.70/2,982,663.15 = 922,406.90/x
  3. Step 3: Cross multiply
    1,987,123.70x = 2,982,663.15 × 922,406.90
  4. Step 4: Simplify right side
    1,987,123.70x = 2,751,229,069,935.74
  5. Step 5: Solve for x
    x = 2,751,229,069,935.74/1,987,123.70
  6. Step 6: Final answer
    x = 1,384,528.34

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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.