Home / 459,517.17-688,645.17-290,735.35

Finding the Fourth Proportional to 459,517.17, 688,645.17 and 290,735.35

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Solution

The fourth proportional to 459,517.17, 688,645.17 and 290,735.35 is: 435,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,517.17 : 688,645.17 = 290,735.35 : x
  2. Step 2: Convert to fraction form
    459,517.17/688,645.17 = 290,735.35/x
  3. Step 3: Cross multiply
    459,517.17x = 688,645.17 × 290,735.35
  4. Step 4: Simplify right side
    459,517.17x = 200,213,491,082.53
  5. Step 5: Solve for x
    x = 200,213,491,082.53/459,517.17
  6. Step 6: Final answer
    x = 435,704.05

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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.