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Finding the Fourth Proportional to 408,908.40, 612,196.20 and 362,252.40

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Solution

The fourth proportional to 408,908.40, 612,196.20 and 362,252.40 is: 542,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,908.40 : 612,196.20 = 362,252.40 : x
  2. Step 2: Convert to fraction form
    408,908.40/612,196.20 = 362,252.40/x
  3. Step 3: Cross multiply
    408,908.40x = 612,196.20 × 362,252.40
  4. Step 4: Simplify right side
    408,908.40x = 221,769,542,720.88
  5. Step 5: Solve for x
    x = 221,769,542,720.88/408,908.40
  6. Step 6: Final answer
    x = 542,345.28

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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.