Home / 628,753.77-867,680.19-342,275.94

Finding the Fourth Proportional to 628,753.77, 867,680.19 and 342,275.94

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Solution

The fourth proportional to 628,753.77, 867,680.19 and 342,275.94 is: 472,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,753.77 : 867,680.19 = 342,275.94 : x
  2. Step 2: Convert to fraction form
    628,753.77/867,680.19 = 342,275.94/x
  3. Step 3: Cross multiply
    628,753.77x = 867,680.19 × 342,275.94
  4. Step 4: Simplify right side
    628,753.77x = 296,986,052,651.63
  5. Step 5: Solve for x
    x = 296,986,052,651.63/628,753.77
  6. Step 6: Final answer
    x = 472,340.79

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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.