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Finding the Fourth Proportional to 442,017.20, 661,470.60 and 404,692.40

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Solution

The fourth proportional to 442,017.20, 661,470.60 and 404,692.40 is: 605,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,017.20 : 661,470.60 = 404,692.40 : x
  2. Step 2: Convert to fraction form
    442,017.20/661,470.60 = 404,692.40/x
  3. Step 3: Cross multiply
    442,017.20x = 661,470.60 × 404,692.40
  4. Step 4: Simplify right side
    442,017.20x = 267,692,124,643.44
  5. Step 5: Solve for x
    x = 267,692,124,643.44/442,017.20
  6. Step 6: Final answer
    x = 605,614.72

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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.