Home / 442,004.20-661,451.10-404,679.40

Finding the Fourth Proportional to 442,004.20, 661,451.10 and 404,679.40

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Solution

The fourth proportional to 442,004.20, 661,451.10 and 404,679.40 is: 605,595.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,004.20 : 661,451.10 = 404,679.40 : x
  2. Step 2: Convert to fraction form
    442,004.20/661,451.10 = 404,679.40/x
  3. Step 3: Cross multiply
    442,004.20x = 661,451.10 × 404,679.40
  4. Step 4: Simplify right side
    442,004.20x = 267,675,634,277.34
  5. Step 5: Solve for x
    x = 267,675,634,277.34/442,004.20
  6. Step 6: Final answer
    x = 605,595.23

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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.