Home / 487,586.60-672,832.96-272,685.15

Finding the Fourth Proportional to 487,586.60, 672,832.96 and 272,685.15

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Solution

The fourth proportional to 487,586.60, 672,832.96 and 272,685.15 is: 376,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,586.60 : 672,832.96 = 272,685.15 : x
  2. Step 2: Convert to fraction form
    487,586.60/672,832.96 = 272,685.15/x
  3. Step 3: Cross multiply
    487,586.60x = 672,832.96 × 272,685.15
  4. Step 4: Simplify right side
    487,586.60x = 183,471,556,622.54
  5. Step 5: Solve for x
    x = 183,471,556,622.54/487,586.60
  6. Step 6: Final answer
    x = 376,285.07

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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.