Home / 485,916.54-670,569.19-268,134.90

Finding the Fourth Proportional to 485,916.54, 670,569.19 and 268,134.90

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Solution

The fourth proportional to 485,916.54, 670,569.19 and 268,134.90 is: 370,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,916.54 : 670,569.19 = 268,134.90 : x
  2. Step 2: Convert to fraction form
    485,916.54/670,569.19 = 268,134.90/x
  3. Step 3: Cross multiply
    485,916.54x = 670,569.19 × 268,134.90
  4. Step 4: Simplify right side
    485,916.54x = 179,803,002,703.73
  5. Step 5: Solve for x
    x = 179,803,002,703.73/485,916.54
  6. Step 6: Final answer
    x = 370,028.57

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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.