Home / 442,013.20-661,464.60-404,688.40

Finding the Fourth Proportional to 442,013.20, 661,464.60 and 404,688.40

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Solution

The fourth proportional to 442,013.20, 661,464.60 and 404,688.40 is: 605,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,013.20 : 661,464.60 = 404,688.40 : x
  2. Step 2: Convert to fraction form
    442,013.20/661,464.60 = 404,688.40/x
  3. Step 3: Cross multiply
    442,013.20x = 661,464.60 × 404,688.40
  4. Step 4: Simplify right side
    442,013.20x = 267,687,050,630.64
  5. Step 5: Solve for x
    x = 267,687,050,630.64/442,013.20
  6. Step 6: Final answer
    x = 605,608.73

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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.