Home / 989,542.68-1,484,411.20-279,576.24

Finding the Fourth Proportional to 989,542.68, 1,484,411.20 and 279,576.24

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Solution

The fourth proportional to 989,542.68, 1,484,411.20 and 279,576.24 is: 419,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,542.68 : 1,484,411.20 = 279,576.24 : x
  2. Step 2: Convert to fraction form
    989,542.68/1,484,411.20 = 279,576.24/x
  3. Step 3: Cross multiply
    989,542.68x = 1,484,411.20 × 279,576.24
  4. Step 4: Simplify right side
    989,542.68x = 415,006,101,909.89
  5. Step 5: Solve for x
    x = 415,006,101,909.89/989,542.68
  6. Step 6: Final answer
    x = 419,391.82

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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.