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Finding the Fourth Proportional to 423,694.80, 637,850.70 and 365,841.36

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Solution

The fourth proportional to 423,694.80, 637,850.70 and 365,841.36 is: 550,755.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,694.80 : 637,850.70 = 365,841.36 : x
  2. Step 2: Convert to fraction form
    423,694.80/637,850.70 = 365,841.36/x
  3. Step 3: Cross multiply
    423,694.80x = 637,850.70 × 365,841.36
  4. Step 4: Simplify right side
    423,694.80x = 233,352,167,564.95
  5. Step 5: Solve for x
    x = 233,352,167,564.95/423,694.80
  6. Step 6: Final answer
    x = 550,755.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.