Home / 688,589.80-1,032,885.42-215,277.64

Finding the Fourth Proportional to 688,589.80, 1,032,885.42 and 215,277.64

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Solution

The fourth proportional to 688,589.80, 1,032,885.42 and 215,277.64 is: 322,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,589.80 : 1,032,885.42 = 215,277.64 : x
  2. Step 2: Convert to fraction form
    688,589.80/1,032,885.42 = 215,277.64/x
  3. Step 3: Cross multiply
    688,589.80x = 1,032,885.42 × 215,277.64
  4. Step 4: Simplify right side
    688,589.80x = 222,357,135,608.01
  5. Step 5: Solve for x
    x = 222,357,135,608.01/688,589.80
  6. Step 6: Final answer
    x = 322,916.69

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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.