Home / 487,224.32-672,383.40-272,388.56

Finding the Fourth Proportional to 487,224.32, 672,383.40 and 272,388.56

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Solution

The fourth proportional to 487,224.32, 672,383.40 and 272,388.56 is: 375,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,224.32 : 672,383.40 = 272,388.56 : x
  2. Step 2: Convert to fraction form
    487,224.32/672,383.40 = 272,388.56/x
  3. Step 3: Cross multiply
    487,224.32x = 672,383.40 × 272,388.56
  4. Step 4: Simplify right side
    487,224.32x = 183,149,546,093.90
  5. Step 5: Solve for x
    x = 183,149,546,093.90/487,224.32
  6. Step 6: Final answer
    x = 375,903.95

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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.