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Finding the Fourth Proportional to 627,878.24, 866,482.80 and 341,400.26

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Solution

The fourth proportional to 627,878.24, 866,482.80 and 341,400.26 is: 471,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,878.24 : 866,482.80 = 341,400.26 : x
  2. Step 2: Convert to fraction form
    627,878.24/866,482.80 = 341,400.26/x
  3. Step 3: Cross multiply
    627,878.24x = 866,482.80 × 341,400.26
  4. Step 4: Simplify right side
    627,878.24x = 295,817,453,205.53
  5. Step 5: Solve for x
    x = 295,817,453,205.53/627,878.24
  6. Step 6: Final answer
    x = 471,138.25

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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.