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Finding the Fourth Proportional to 785,226.80, 1,083,589.28 and 436,366

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Solution

The fourth proportional to 785,226.80, 1,083,589.28 and 436,366 is: 602,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,226.80 : 1,083,589.28 = 436,366 : x
  2. Step 2: Convert to fraction form
    785,226.80/1,083,589.28 = 436,366/x
  3. Step 3: Cross multiply
    785,226.80x = 1,083,589.28 × 436,366
  4. Step 4: Simplify right side
    785,226.80x = 472,841,519,756.48
  5. Step 5: Solve for x
    x = 472,841,519,756.48/785,226.80
  6. Step 6: Final answer
    x = 602,171.91

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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.