Home / 688,490.30-1,032,736.26-215,178.14

Finding the Fourth Proportional to 688,490.30, 1,032,736.26 and 215,178.14

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Solution

The fourth proportional to 688,490.30, 1,032,736.26 and 215,178.14 is: 322,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,490.30 : 1,032,736.26 = 215,178.14 : x
  2. Step 2: Convert to fraction form
    688,490.30/1,032,736.26 = 215,178.14/x
  3. Step 3: Cross multiply
    688,490.30x = 1,032,736.26 × 215,178.14
  4. Step 4: Simplify right side
    688,490.30x = 222,222,267,537.36
  5. Step 5: Solve for x
    x = 222,222,267,537.36/688,490.30
  6. Step 6: Final answer
    x = 322,767.46

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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.