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Finding the Fourth Proportional to 442,001.20, 661,446.60 and 404,676.40

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Solution

The fourth proportional to 442,001.20, 661,446.60 and 404,676.40 is: 605,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,001.20 : 661,446.60 = 404,676.40 : x
  2. Step 2: Convert to fraction form
    442,001.20/661,446.60 = 404,676.40/x
  3. Step 3: Cross multiply
    442,001.20x = 661,446.60 × 404,676.40
  4. Step 4: Simplify right side
    442,001.20x = 267,671,828,880.24
  5. Step 5: Solve for x
    x = 267,671,828,880.24/442,001.20
  6. Step 6: Final answer
    x = 605,590.73

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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.