Home / 487,919.27-673,314.10-270,137.63

Finding the Fourth Proportional to 487,919.27, 673,314.10 and 270,137.63

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Solution

The fourth proportional to 487,919.27, 673,314.10 and 270,137.63 is: 372,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,919.27 : 673,314.10 = 270,137.63 : x
  2. Step 2: Convert to fraction form
    487,919.27/673,314.10 = 270,137.63/x
  3. Step 3: Cross multiply
    487,919.27x = 673,314.10 × 270,137.63
  4. Step 4: Simplify right side
    487,919.27x = 181,887,471,177.67
  5. Step 5: Solve for x
    x = 181,887,471,177.67/487,919.27
  6. Step 6: Final answer
    x = 372,781.90

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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.