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Finding the Fourth Proportional to 660,066.52, 988,842.92 and 375,953.16

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Solution

The fourth proportional to 660,066.52, 988,842.92 and 375,953.16 is: 563,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,066.52 : 988,842.92 = 375,953.16 : x
  2. Step 2: Convert to fraction form
    660,066.52/988,842.92 = 375,953.16/x
  3. Step 3: Cross multiply
    660,066.52x = 988,842.92 × 375,953.16
  4. Step 4: Simplify right side
    660,066.52x = 371,758,620,517.63
  5. Step 5: Solve for x
    x = 371,758,620,517.63/660,066.52
  6. Step 6: Final answer
    x = 563,213.87

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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.