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Finding the Fourth Proportional to 663,262.41, 915,302.93 and 361,456.41

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Solution

The fourth proportional to 663,262.41, 915,302.93 and 361,456.41 is: 498,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,262.41 : 915,302.93 = 361,456.41 : x
  2. Step 2: Convert to fraction form
    663,262.41/915,302.93 = 361,456.41/x
  3. Step 3: Cross multiply
    663,262.41x = 915,302.93 × 361,456.41
  4. Step 4: Simplify right side
    663,262.41x = 330,842,109,333.00
  5. Step 5: Solve for x
    x = 330,842,109,333.00/663,262.41
  6. Step 6: Final answer
    x = 498,810.28

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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.