Home / 688,490.43-1,032,736.45-215,178.27

Finding the Fourth Proportional to 688,490.43, 1,032,736.45 and 215,178.27

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Solution

The fourth proportional to 688,490.43, 1,032,736.45 and 215,178.27 is: 322,767.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,490.43 : 1,032,736.45 = 215,178.27 : x
  2. Step 2: Convert to fraction form
    688,490.43/1,032,736.45 = 215,178.27/x
  3. Step 3: Cross multiply
    688,490.43x = 1,032,736.45 × 215,178.27
  4. Step 4: Simplify right side
    688,490.43x = 222,222,442,676.94
  5. Step 5: Solve for x
    x = 222,222,442,676.94/688,490.43
  6. Step 6: Final answer
    x = 322,767.66

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Similar ratio
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1.5x scale

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.