Home / 947,148.12-1,420,711.38-273,207.20

Finding the Fourth Proportional to 947,148.12, 1,420,711.38 and 273,207.20

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Solution

The fourth proportional to 947,148.12, 1,420,711.38 and 273,207.20 is: 409,807.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,148.12 : 1,420,711.38 = 273,207.20 : x
  2. Step 2: Convert to fraction form
    947,148.12/1,420,711.38 = 273,207.20/x
  3. Step 3: Cross multiply
    947,148.12x = 1,420,711.38 × 273,207.20
  4. Step 4: Simplify right side
    947,148.12x = 388,148,571,034.38
  5. Step 5: Solve for x
    x = 388,148,571,034.38/947,148.12
  6. Step 6: Final answer
    x = 409,807.68

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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.