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Finding the Fourth Proportional to 627,457.80, 866,017.44 and 372,759.78

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Solution

The fourth proportional to 627,457.80, 866,017.44 and 372,759.78 is: 514,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,457.80 : 866,017.44 = 372,759.78 : x
  2. Step 2: Convert to fraction form
    627,457.80/866,017.44 = 372,759.78/x
  3. Step 3: Cross multiply
    627,457.80x = 866,017.44 × 372,759.78
  4. Step 4: Simplify right side
    627,457.80x = 322,816,470,410.56
  5. Step 5: Solve for x
    x = 322,816,470,410.56/627,457.80
  6. Step 6: Final answer
    x = 514,483.16

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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.