Home / 487,493.60-672,736.44-272,631.20

Finding the Fourth Proportional to 487,493.60, 672,736.44 and 272,631.20

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Solution

The fourth proportional to 487,493.60, 672,736.44 and 272,631.20 is: 376,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,493.60 : 672,736.44 = 272,631.20 : x
  2. Step 2: Convert to fraction form
    487,493.60/672,736.44 = 272,631.20/x
  3. Step 3: Cross multiply
    487,493.60x = 672,736.44 × 272,631.20
  4. Step 4: Simplify right side
    487,493.60x = 183,408,942,920.93
  5. Step 5: Solve for x
    x = 183,408,942,920.93/487,493.60
  6. Step 6: Final answer
    x = 376,228.41

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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.