Home / 631,382.52-871,250.68-355,785.24

Finding the Fourth Proportional to 631,382.52, 871,250.68 and 355,785.24

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Solution

The fourth proportional to 631,382.52, 871,250.68 and 355,785.24 is: 490,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,382.52 : 871,250.68 = 355,785.24 : x
  2. Step 2: Convert to fraction form
    631,382.52/871,250.68 = 355,785.24/x
  3. Step 3: Cross multiply
    631,382.52x = 871,250.68 × 355,785.24
  4. Step 4: Simplify right side
    631,382.52x = 309,978,132,283.96
  5. Step 5: Solve for x
    x = 309,978,132,283.96/631,382.52
  6. Step 6: Final answer
    x = 490,951.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.