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Finding the Fourth Proportional to 710,887.98, 981,025.49 and 388,599.41

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Solution

The fourth proportional to 710,887.98, 981,025.49 and 388,599.41 is: 536,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,887.98 : 981,025.49 = 388,599.41 : x
  2. Step 2: Convert to fraction form
    710,887.98/981,025.49 = 388,599.41/x
  3. Step 3: Cross multiply
    710,887.98x = 981,025.49 × 388,599.41
  4. Step 4: Simplify right side
    710,887.98x = 381,225,929,061.53
  5. Step 5: Solve for x
    x = 381,225,929,061.53/710,887.98
  6. Step 6: Final answer
    x = 536,267.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.