Home / 628,627.78-867,506.39-342,149.95

Finding the Fourth Proportional to 628,627.78, 867,506.39 and 342,149.95

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Solution

The fourth proportional to 628,627.78, 867,506.39 and 342,149.95 is: 472,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,627.78 : 867,506.39 = 342,149.95 : x
  2. Step 2: Convert to fraction form
    628,627.78/867,506.39 = 342,149.95/x
  3. Step 3: Cross multiply
    628,627.78x = 867,506.39 × 342,149.95
  4. Step 4: Simplify right side
    628,627.78x = 296,817,267,963.18
  5. Step 5: Solve for x
    x = 296,817,267,963.18/628,627.78
  6. Step 6: Final answer
    x = 472,166.96

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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.