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Finding the Fourth Proportional to 662,990.84, 914,687.46 and 433,679.03

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Solution

The fourth proportional to 662,990.84, 914,687.46 and 433,679.03 is: 598,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,990.84 : 914,687.46 = 433,679.03 : x
  2. Step 2: Convert to fraction form
    662,990.84/914,687.46 = 433,679.03/x
  3. Step 3: Cross multiply
    662,990.84x = 914,687.46 × 433,679.03
  4. Step 4: Simplify right side
    662,990.84x = 396,680,765,832.53
  5. Step 5: Solve for x
    x = 396,680,765,832.53/662,990.84
  6. Step 6: Final answer
    x = 598,320.13

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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.