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Finding the Fourth Proportional to 1,943,444.40, 2,914,000.20 and 998,660.40

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Solution

The fourth proportional to 1,943,444.40, 2,914,000.20 and 998,660.40 is: 1,497,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,444.40 : 2,914,000.20 = 998,660.40 : x
  2. Step 2: Convert to fraction form
    1,943,444.40/2,914,000.20 = 998,660.40/x
  3. Step 3: Cross multiply
    1,943,444.40x = 2,914,000.20 × 998,660.40
  4. Step 4: Simplify right side
    1,943,444.40x = 2,910,096,605,332.08
  5. Step 5: Solve for x
    x = 2,910,096,605,332.08/1,943,444.40
  6. Step 6: Final answer
    x = 1,497,391.23

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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.