Home / 977,090.80-1,465,636.20-267,190.60

Finding the Fourth Proportional to 977,090.80, 1,465,636.20 and 267,190.60

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Solution

The fourth proportional to 977,090.80, 1,465,636.20 and 267,190.60 is: 400,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,090.80 : 1,465,636.20 = 267,190.60 : x
  2. Step 2: Convert to fraction form
    977,090.80/1,465,636.20 = 267,190.60/x
  3. Step 3: Cross multiply
    977,090.80x = 1,465,636.20 × 267,190.60
  4. Step 4: Simplify right side
    977,090.80x = 391,604,215,659.72
  5. Step 5: Solve for x
    x = 391,604,215,659.72/977,090.80
  6. Step 6: Final answer
    x = 400,785.90

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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.