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Finding the Fourth Proportional to 400,807.46, 601,240.35 and 134,565.72

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Solution

The fourth proportional to 400,807.46, 601,240.35 and 134,565.72 is: 201,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,807.46 : 601,240.35 = 134,565.72 : x
  2. Step 2: Convert to fraction form
    400,807.46/601,240.35 = 134,565.72/x
  3. Step 3: Cross multiply
    400,807.46x = 601,240.35 × 134,565.72
  4. Step 4: Simplify right side
    400,807.46x = 80,906,340,590.80
  5. Step 5: Solve for x
    x = 80,906,340,590.80/400,807.46
  6. Step 6: Final answer
    x = 201,858.37

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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.