Home / 880,165.40-1,320,248.10-215,317.40

Finding the Fourth Proportional to 880,165.40, 1,320,248.10 and 215,317.40

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Solution

The fourth proportional to 880,165.40, 1,320,248.10 and 215,317.40 is: 322,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,165.40 : 1,320,248.10 = 215,317.40 : x
  2. Step 2: Convert to fraction form
    880,165.40/1,320,248.10 = 215,317.40/x
  3. Step 3: Cross multiply
    880,165.40x = 1,320,248.10 × 215,317.40
  4. Step 4: Simplify right side
    880,165.40x = 284,272,388,246.94
  5. Step 5: Solve for x
    x = 284,272,388,246.94/880,165.40
  6. Step 6: Final answer
    x = 322,976.10

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Double scale
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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.