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Finding the Fourth Proportional to 627,710.18, 866,656.94 and 482,256.72

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Solution

The fourth proportional to 627,710.18, 866,656.94 and 482,256.72 is: 665,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,710.18 : 866,656.94 = 482,256.72 : x
  2. Step 2: Convert to fraction form
    627,710.18/866,656.94 = 482,256.72/x
  3. Step 3: Cross multiply
    627,710.18x = 866,656.94 × 482,256.72
  4. Step 4: Simplify right side
    627,710.18x = 417,951,130,838.35
  5. Step 5: Solve for x
    x = 417,951,130,838.35/627,710.18
  6. Step 6: Final answer
    x = 665,834.56

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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.