Home / 387,061.28-580,628.64-150,422.24

Finding the Fourth Proportional to 387,061.28, 580,628.64 and 150,422.24

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Solution

The fourth proportional to 387,061.28, 580,628.64 and 150,422.24 is: 225,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,061.28 : 580,628.64 = 150,422.24 : x
  2. Step 2: Convert to fraction form
    387,061.28/580,628.64 = 150,422.24/x
  3. Step 3: Cross multiply
    387,061.28x = 580,628.64 × 150,422.24
  4. Step 4: Simplify right side
    387,061.28x = 87,339,460,636.95
  5. Step 5: Solve for x
    x = 87,339,460,636.95/387,061.28
  6. Step 6: Final answer
    x = 225,647.63

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1.5x scale

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.