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Finding the Fourth Proportional to 605,087.70, 907,631.55 and 555,321.30

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Solution

The fourth proportional to 605,087.70, 907,631.55 and 555,321.30 is: 832,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,087.70 : 907,631.55 = 555,321.30 : x
  2. Step 2: Convert to fraction form
    605,087.70/907,631.55 = 555,321.30/x
  3. Step 3: Cross multiply
    605,087.70x = 907,631.55 × 555,321.30
  4. Step 4: Simplify right side
    605,087.70x = 504,027,132,267.02
  5. Step 5: Solve for x
    x = 504,027,132,267.02/605,087.70
  6. Step 6: Final answer
    x = 832,981.95

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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.