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Finding the Fourth Proportional to 627,672.84, 866,228.76 and 352,056.57

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Solution

The fourth proportional to 627,672.84, 866,228.76 and 352,056.57 is: 485,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,672.84 : 866,228.76 = 352,056.57 : x
  2. Step 2: Convert to fraction form
    627,672.84/866,228.76 = 352,056.57/x
  3. Step 3: Cross multiply
    627,672.84x = 866,228.76 × 352,056.57
  4. Step 4: Simplify right side
    627,672.84x = 304,961,526,080.95
  5. Step 5: Solve for x
    x = 304,961,526,080.95/627,672.84
  6. Step 6: Final answer
    x = 485,860.64

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1.5x scale

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.