Home / 457,930.68-631,921.86-253,965.64

Finding the Fourth Proportional to 457,930.68, 631,921.86 and 253,965.64

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Solution

The fourth proportional to 457,930.68, 631,921.86 and 253,965.64 is: 350,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,930.68 : 631,921.86 = 253,965.64 : x
  2. Step 2: Convert to fraction form
    457,930.68/631,921.86 = 253,965.64/x
  3. Step 3: Cross multiply
    457,930.68x = 631,921.86 × 253,965.64
  4. Step 4: Simplify right side
    457,930.68x = 160,486,439,604.89
  5. Step 5: Solve for x
    x = 160,486,439,604.89/457,930.68
  6. Step 6: Final answer
    x = 350,460.12

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1.5x scale

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.