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Finding the Fourth Proportional to 660,080.30, 989,961.92 and 304,752.92

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Solution

The fourth proportional to 660,080.30, 989,961.92 and 304,752.92 is: 457,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,080.30 : 989,961.92 = 304,752.92 : x
  2. Step 2: Convert to fraction form
    660,080.30/989,961.92 = 304,752.92/x
  3. Step 3: Cross multiply
    660,080.30x = 989,961.92 × 304,752.92
  4. Step 4: Simplify right side
    660,080.30x = 301,693,786,759.95
  5. Step 5: Solve for x
    x = 301,693,786,759.95/660,080.30
  6. Step 6: Final answer
    x = 457,056.19

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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.