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Finding the Fourth Proportional to 627,545.26, 866,012.55 and 341,065.35

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Solution

The fourth proportional to 627,545.26, 866,012.55 and 341,065.35 is: 470,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,545.26 : 866,012.55 = 341,065.35 : x
  2. Step 2: Convert to fraction form
    627,545.26/866,012.55 = 341,065.35/x
  3. Step 3: Cross multiply
    627,545.26x = 866,012.55 × 341,065.35
  4. Step 4: Simplify right side
    627,545.26x = 295,366,873,470.14
  5. Step 5: Solve for x
    x = 295,366,873,470.14/627,545.26
  6. Step 6: Final answer
    x = 470,670.23

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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.