Home / 698,178.82-1,045,201.50-431,080.52

Finding the Fourth Proportional to 698,178.82, 1,045,201.50 and 431,080.52

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Solution

The fourth proportional to 698,178.82, 1,045,201.50 and 431,080.52 is: 645,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,178.82 : 1,045,201.50 = 431,080.52 : x
  2. Step 2: Convert to fraction form
    698,178.82/1,045,201.50 = 431,080.52/x
  3. Step 3: Cross multiply
    698,178.82x = 1,045,201.50 × 431,080.52
  4. Step 4: Simplify right side
    698,178.82x = 450,566,006,124.78
  5. Step 5: Solve for x
    x = 450,566,006,124.78/698,178.82
  6. Step 6: Final answer
    x = 645,344.71

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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.