Home / 718,844.08-1,078,266.12-220,143.28

Finding the Fourth Proportional to 718,844.08, 1,078,266.12 and 220,143.28

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Solution

The fourth proportional to 718,844.08, 1,078,266.12 and 220,143.28 is: 330,214.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,844.08 : 1,078,266.12 = 220,143.28 : x
  2. Step 2: Convert to fraction form
    718,844.08/1,078,266.12 = 220,143.28/x
  3. Step 3: Cross multiply
    718,844.08x = 1,078,266.12 × 220,143.28
  4. Step 4: Simplify right side
    718,844.08x = 237,373,040,369.67
  5. Step 5: Solve for x
    x = 237,373,040,369.67/718,844.08
  6. Step 6: Final answer
    x = 330,214.92

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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.