Home / 487,033.28-672,120.36-272,173.96

Finding the Fourth Proportional to 487,033.28, 672,120.36 and 272,173.96

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Solution

The fourth proportional to 487,033.28, 672,120.36 and 272,173.96 is: 375,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,033.28 : 672,120.36 = 272,173.96 : x
  2. Step 2: Convert to fraction form
    487,033.28/672,120.36 = 272,173.96/x
  3. Step 3: Cross multiply
    487,033.28x = 672,120.36 × 272,173.96
  4. Step 4: Simplify right side
    487,033.28x = 182,933,659,977.83
  5. Step 5: Solve for x
    x = 182,933,659,977.83/487,033.28
  6. Step 6: Final answer
    x = 375,608.13

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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.