Home / 977,128.80-1,465,693.20-267,228.60

Finding the Fourth Proportional to 977,128.80, 1,465,693.20 and 267,228.60

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Solution

The fourth proportional to 977,128.80, 1,465,693.20 and 267,228.60 is: 400,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,128.80 : 1,465,693.20 = 267,228.60 : x
  2. Step 2: Convert to fraction form
    977,128.80/1,465,693.20 = 267,228.60/x
  3. Step 3: Cross multiply
    977,128.80x = 1,465,693.20 × 267,228.60
  4. Step 4: Simplify right side
    977,128.80x = 391,675,141,865.52
  5. Step 5: Solve for x
    x = 391,675,141,865.52/977,128.80
  6. Step 6: Final answer
    x = 400,842.90

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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.