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Finding the Fourth Proportional to 605,026.60, 907,734.30 and 405,572.20

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Solution

The fourth proportional to 605,026.60, 907,734.30 and 405,572.20 is: 608,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,026.60 : 907,734.30 = 405,572.20 : x
  2. Step 2: Convert to fraction form
    605,026.60/907,734.30 = 405,572.20/x
  3. Step 3: Cross multiply
    605,026.60x = 907,734.30 × 405,572.20
  4. Step 4: Simplify right side
    605,026.60x = 368,151,797,066.46
  5. Step 5: Solve for x
    x = 368,151,797,066.46/605,026.60
  6. Step 6: Final answer
    x = 608,488.61

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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.