Home / 485,867.68-670,492.96-268,078.37

Finding the Fourth Proportional to 485,867.68, 670,492.96 and 268,078.37

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Solution

The fourth proportional to 485,867.68, 670,492.96 and 268,078.37 is: 369,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,867.68 : 670,492.96 = 268,078.37 : x
  2. Step 2: Convert to fraction form
    485,867.68/670,492.96 = 268,078.37/x
  3. Step 3: Cross multiply
    485,867.68x = 670,492.96 × 268,078.37
  4. Step 4: Simplify right side
    485,867.68x = 179,744,655,790.61
  5. Step 5: Solve for x
    x = 179,744,655,790.61/485,867.68
  6. Step 6: Final answer
    x = 369,945.70

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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.