Home / 627,314.70-865,702.17-340,839.57

Finding the Fourth Proportional to 627,314.70, 865,702.17 and 340,839.57

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Solution

The fourth proportional to 627,314.70, 865,702.17 and 340,839.57 is: 470,362.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,314.70 : 865,702.17 = 340,839.57 : x
  2. Step 2: Convert to fraction form
    627,314.70/865,702.17 = 340,839.57/x
  3. Step 3: Cross multiply
    627,314.70x = 865,702.17 × 340,839.57
  4. Step 4: Simplify right side
    627,314.70x = 295,065,555,370.87
  5. Step 5: Solve for x
    x = 295,065,555,370.87/627,314.70
  6. Step 6: Final answer
    x = 470,362.89

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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.