Home / 457,972.20-631,979.28-254,005.05

Finding the Fourth Proportional to 457,972.20, 631,979.28 and 254,005.05

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Solution

The fourth proportional to 457,972.20, 631,979.28 and 254,005.05 is: 350,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,972.20 : 631,979.28 = 254,005.05 : x
  2. Step 2: Convert to fraction form
    457,972.20/631,979.28 = 254,005.05/x
  3. Step 3: Cross multiply
    457,972.20x = 631,979.28 × 254,005.05
  4. Step 4: Simplify right side
    457,972.20x = 160,525,928,615.36
  5. Step 5: Solve for x
    x = 160,525,928,615.36/457,972.20
  6. Step 6: Final answer
    x = 350,514.57

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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.