Home / 485,867.03-670,492.06-268,077.71

Finding the Fourth Proportional to 485,867.03, 670,492.06 and 268,077.71

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Solution

The fourth proportional to 485,867.03, 670,492.06 and 268,077.71 is: 369,944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,867.03 : 670,492.06 = 268,077.71 : x
  2. Step 2: Convert to fraction form
    485,867.03/670,492.06 = 268,077.71/x
  3. Step 3: Cross multiply
    485,867.03x = 670,492.06 × 268,077.71
  4. Step 4: Simplify right side
    485,867.03x = 179,743,977,024.02
  5. Step 5: Solve for x
    x = 179,743,977,024.02/485,867.03
  6. Step 6: Final answer
    x = 369,944.79

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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.