Home / 427,588.60-641,382.90-112,077.40

Finding the Fourth Proportional to 427,588.60, 641,382.90 and 112,077.40

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Solution

The fourth proportional to 427,588.60, 641,382.90 and 112,077.40 is: 168,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,588.60 : 641,382.90 = 112,077.40 : x
  2. Step 2: Convert to fraction form
    427,588.60/641,382.90 = 112,077.40/x
  3. Step 3: Cross multiply
    427,588.60x = 641,382.90 × 112,077.40
  4. Step 4: Simplify right side
    427,588.60x = 71,884,527,836.46
  5. Step 5: Solve for x
    x = 71,884,527,836.46/427,588.60
  6. Step 6: Final answer
    x = 168,116.10

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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.