Home / 487,028.28-672,113.46-272,168.96

Finding the Fourth Proportional to 487,028.28, 672,113.46 and 272,168.96

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Solution

The fourth proportional to 487,028.28, 672,113.46 and 272,168.96 is: 375,601.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,028.28 : 672,113.46 = 272,168.96 : x
  2. Step 2: Convert to fraction form
    487,028.28/672,113.46 = 272,168.96/x
  3. Step 3: Cross multiply
    487,028.28x = 672,113.46 × 272,168.96
  4. Step 4: Simplify right side
    487,028.28x = 182,928,421,410.20
  5. Step 5: Solve for x
    x = 182,928,421,410.20/487,028.28
  6. Step 6: Final answer
    x = 375,601.23

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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.