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Finding the Fourth Proportional to 662,507.56, 914,191.74 and 372,151.72

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Solution

The fourth proportional to 662,507.56, 914,191.74 and 372,151.72 is: 513,530.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,507.56 : 914,191.74 = 372,151.72 : x
  2. Step 2: Convert to fraction form
    662,507.56/914,191.74 = 372,151.72/x
  3. Step 3: Cross multiply
    662,507.56x = 914,191.74 × 372,151.72
  4. Step 4: Simplify right side
    662,507.56x = 340,218,028,450.79
  5. Step 5: Solve for x
    x = 340,218,028,450.79/662,507.56
  6. Step 6: Final answer
    x = 513,530.79

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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.