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Finding the Fourth Proportional to 605,024.90, 907,537.35 and 405,959.30

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Solution

The fourth proportional to 605,024.90, 907,537.35 and 405,959.30 is: 608,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,024.90 : 907,537.35 = 405,959.30 : x
  2. Step 2: Convert to fraction form
    605,024.90/907,537.35 = 405,959.30/x
  3. Step 3: Cross multiply
    605,024.90x = 907,537.35 × 405,959.30
  4. Step 4: Simplify right side
    605,024.90x = 368,423,227,329.86
  5. Step 5: Solve for x
    x = 368,423,227,329.86/605,024.90
  6. Step 6: Final answer
    x = 608,938.95

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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.