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Finding the Fourth Proportional to 663,041.80, 914,965.86 and 376,524.04

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Solution

The fourth proportional to 663,041.80, 914,965.86 and 376,524.04 is: 519,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,041.80 : 914,965.86 = 376,524.04 : x
  2. Step 2: Convert to fraction form
    663,041.80/914,965.86 = 376,524.04/x
  3. Step 3: Cross multiply
    663,041.80x = 914,965.86 × 376,524.04
  4. Step 4: Simplify right side
    663,041.80x = 344,506,642,069.27
  5. Step 5: Solve for x
    x = 344,506,642,069.27/663,041.80
  6. Step 6: Final answer
    x = 519,585.10

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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.