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Finding the Fourth Proportional to 649,063.11, 895,702.08 and 358,694.18

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Solution

The fourth proportional to 649,063.11, 895,702.08 and 358,694.18 is: 494,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,063.11 : 895,702.08 = 358,694.18 : x
  2. Step 2: Convert to fraction form
    649,063.11/895,702.08 = 358,694.18/x
  3. Step 3: Cross multiply
    649,063.11x = 895,702.08 × 358,694.18
  4. Step 4: Simplify right side
    649,063.11x = 321,283,123,109.89
  5. Step 5: Solve for x
    x = 321,283,123,109.89/649,063.11
  6. Step 6: Final answer
    x = 494,995.20

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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.