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Finding the Fourth Proportional to 678,525.80, 936,329.22 and 372,542.63

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Solution

The fourth proportional to 678,525.80, 936,329.22 and 372,542.63 is: 514,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,525.80 : 936,329.22 = 372,542.63 : x
  2. Step 2: Convert to fraction form
    678,525.80/936,329.22 = 372,542.63/x
  3. Step 3: Cross multiply
    678,525.80x = 936,329.22 × 372,542.63
  4. Step 4: Simplify right side
    678,525.80x = 348,822,545,483.00
  5. Step 5: Solve for x
    x = 348,822,545,483.00/678,525.80
  6. Step 6: Final answer
    x = 514,088.85

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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.