Home / 1,121,146.44-1,680,719.46-411,008.64

Finding the Fourth Proportional to 1,121,146.44, 1,680,719.46 and 411,008.64

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Solution

The fourth proportional to 1,121,146.44, 1,680,719.46 and 411,008.64 is: 616,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,146.44 : 1,680,719.46 = 411,008.64 : x
  2. Step 2: Convert to fraction form
    1,121,146.44/1,680,719.46 = 411,008.64/x
  3. Step 3: Cross multiply
    1,121,146.44x = 1,680,719.46 × 411,008.64
  4. Step 4: Simplify right side
    1,121,146.44x = 690,790,219,476.13
  5. Step 5: Solve for x
    x = 690,790,219,476.13/1,121,146.44
  6. Step 6: Final answer
    x = 616,146.29

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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.