Home / 628,747.30-867,671.34-342,269.50

Finding the Fourth Proportional to 628,747.30, 867,671.34 and 342,269.50

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Solution

The fourth proportional to 628,747.30, 867,671.34 and 342,269.50 is: 472,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,747.30 : 867,671.34 = 342,269.50 : x
  2. Step 2: Convert to fraction form
    628,747.30/867,671.34 = 342,269.50/x
  3. Step 3: Cross multiply
    628,747.30x = 867,671.34 × 342,269.50
  4. Step 4: Simplify right side
    628,747.30x = 296,977,435,706.13
  5. Step 5: Solve for x
    x = 296,977,435,706.13/628,747.30
  6. Step 6: Final answer
    x = 472,331.95

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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.