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Finding the Fourth Proportional to 660,902.64, 991,352.04 and 187,588.44

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Solution

The fourth proportional to 660,902.64, 991,352.04 and 187,588.44 is: 281,382.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,902.64 : 991,352.04 = 187,588.44 : x
  2. Step 2: Convert to fraction form
    660,902.64/991,352.04 = 187,588.44/x
  3. Step 3: Cross multiply
    660,902.64x = 991,352.04 × 187,588.44
  4. Step 4: Simplify right side
    660,902.64x = 185,966,182,674.42
  5. Step 5: Solve for x
    x = 185,966,182,674.42/660,902.64
  6. Step 6: Final answer
    x = 281,382.12

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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.