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Finding the Fourth Proportional to 627,603.98, 866,510.57 and 482,150.69

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Solution

The fourth proportional to 627,603.98, 866,510.57 and 482,150.69 is: 665,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,603.98 : 866,510.57 = 482,150.69 : x
  2. Step 2: Convert to fraction form
    627,603.98/866,510.57 = 482,150.69/x
  3. Step 3: Cross multiply
    627,603.98x = 866,510.57 × 482,150.69
  4. Step 4: Simplify right side
    627,603.98x = 417,788,662,474.49
  5. Step 5: Solve for x
    x = 417,788,662,474.49/627,603.98
  6. Step 6: Final answer
    x = 665,688.36

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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.