Home / 628,731.28-867,649.27-342,253.52

Finding the Fourth Proportional to 628,731.28, 867,649.27 and 342,253.52

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Solution

The fourth proportional to 628,731.28, 867,649.27 and 342,253.52 is: 472,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,731.28 : 867,649.27 = 342,253.52 : x
  2. Step 2: Convert to fraction form
    628,731.28/867,649.27 = 342,253.52/x
  3. Step 3: Cross multiply
    628,731.28x = 867,649.27 × 342,253.52
  4. Step 4: Simplify right side
    628,731.28x = 296,956,015,484.46
  5. Step 5: Solve for x
    x = 296,956,015,484.46/628,731.28
  6. Step 6: Final answer
    x = 472,309.91

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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.