Home / 987,007.61-1,480,511.32-538,105.95

Finding the Fourth Proportional to 987,007.61, 1,480,511.32 and 538,105.95

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Solution

The fourth proportional to 987,007.61, 1,480,511.32 and 538,105.95 is: 807,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,007.61 : 1,480,511.32 = 538,105.95 : x
  2. Step 2: Convert to fraction form
    987,007.61/1,480,511.32 = 538,105.95/x
  3. Step 3: Cross multiply
    987,007.61x = 1,480,511.32 × 538,105.95
  4. Step 4: Simplify right side
    987,007.61x = 796,671,948,989.09
  5. Step 5: Solve for x
    x = 796,671,948,989.09/987,007.61
  6. Step 6: Final answer
    x = 807,158.87

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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.