Home / 487,449.60-672,675.84-272,587.20

Finding the Fourth Proportional to 487,449.60, 672,675.84 and 272,587.20

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Solution

The fourth proportional to 487,449.60, 672,675.84 and 272,587.20 is: 376,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,449.60 : 672,675.84 = 272,587.20 : x
  2. Step 2: Convert to fraction form
    487,449.60/672,675.84 = 272,587.20/x
  3. Step 3: Cross multiply
    487,449.60x = 672,675.84 × 272,587.20
  4. Step 4: Simplify right side
    487,449.60x = 183,362,823,733.25
  5. Step 5: Solve for x
    x = 183,362,823,733.25/487,449.60
  6. Step 6: Final answer
    x = 376,167.76

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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.