Home / 1,127,282.52-1,690,432.26-426,375

Finding the Fourth Proportional to 1,127,282.52, 1,690,432.26 and 426,375

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Solution

The fourth proportional to 1,127,282.52, 1,690,432.26 and 426,375 is: 639,376.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,282.52 : 1,690,432.26 = 426,375 : x
  2. Step 2: Convert to fraction form
    1,127,282.52/1,690,432.26 = 426,375/x
  3. Step 3: Cross multiply
    1,127,282.52x = 1,690,432.26 × 426,375
  4. Step 4: Simplify right side
    1,127,282.52x = 720,758,054,857.50
  5. Step 5: Solve for x
    x = 720,758,054,857.50/1,127,282.52
  6. Step 6: Final answer
    x = 639,376.59

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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.