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Finding the Fourth Proportional to 662,898.85, 914,767.98 and 376,412.80

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Solution

The fourth proportional to 662,898.85, 914,767.98 and 376,412.80 is: 519,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,898.85 : 914,767.98 = 376,412.80 : x
  2. Step 2: Convert to fraction form
    662,898.85/914,767.98 = 376,412.80/x
  3. Step 3: Cross multiply
    662,898.85x = 914,767.98 × 376,412.80
  4. Step 4: Simplify right side
    662,898.85x = 344,330,376,702.14
  5. Step 5: Solve for x
    x = 344,330,376,702.14/662,898.85
  6. Step 6: Final answer
    x = 519,431.25

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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.