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Finding the Fourth Proportional to 627,352.26, 865,751.40 and 340,872.35

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Solution

The fourth proportional to 627,352.26, 865,751.40 and 340,872.35 is: 470,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,352.26 : 865,751.40 = 340,872.35 : x
  2. Step 2: Convert to fraction form
    627,352.26/865,751.40 = 340,872.35/x
  3. Step 3: Cross multiply
    627,352.26x = 865,751.40 × 340,872.35
  4. Step 4: Simplify right side
    627,352.26x = 295,110,715,254.24
  5. Step 5: Solve for x
    x = 295,110,715,254.24/627,352.26
  6. Step 6: Final answer
    x = 470,406.71

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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.