Home / 487,601.25-672,919.56-272,755.77

Finding the Fourth Proportional to 487,601.25, 672,919.56 and 272,755.77

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Solution

The fourth proportional to 487,601.25, 672,919.56 and 272,755.77 is: 376,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,601.25 : 672,919.56 = 272,755.77 : x
  2. Step 2: Convert to fraction form
    487,601.25/672,919.56 = 272,755.77/x
  3. Step 3: Cross multiply
    487,601.25x = 672,919.56 × 272,755.77
  4. Step 4: Simplify right side
    487,601.25x = 183,542,692,735.86
  5. Step 5: Solve for x
    x = 183,542,692,735.86/487,601.25
  6. Step 6: Final answer
    x = 376,419.65

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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.