Home / 457,811.68-631,768.80-253,863.40

Finding the Fourth Proportional to 457,811.68, 631,768.80 and 253,863.40

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Solution

The fourth proportional to 457,811.68, 631,768.80 and 253,863.40 is: 350,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,811.68 : 631,768.80 = 253,863.40 : x
  2. Step 2: Convert to fraction form
    457,811.68/631,768.80 = 253,863.40/x
  3. Step 3: Cross multiply
    457,811.68x = 631,768.80 × 253,863.40
  4. Step 4: Simplify right side
    457,811.68x = 160,382,975,581.92
  5. Step 5: Solve for x
    x = 160,382,975,581.92/457,811.68
  6. Step 6: Final answer
    x = 350,325.22

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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.