Home / 989,542.91-1,484,411.57-279,576.47

Finding the Fourth Proportional to 989,542.91, 1,484,411.57 and 279,576.47

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Solution

The fourth proportional to 989,542.91, 1,484,411.57 and 279,576.47 is: 419,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,542.91 : 1,484,411.57 = 279,576.47 : x
  2. Step 2: Convert to fraction form
    989,542.91/1,484,411.57 = 279,576.47/x
  3. Step 3: Cross multiply
    989,542.91x = 1,484,411.57 × 279,576.47
  4. Step 4: Simplify right side
    989,542.91x = 415,006,546,767.76
  5. Step 5: Solve for x
    x = 415,006,546,767.76/989,542.91
  6. Step 6: Final answer
    x = 419,392.17

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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.