Home / 627,294.28-865,475.40-355,318.96

Finding the Fourth Proportional to 627,294.28, 865,475.40 and 355,318.96

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Solution

The fourth proportional to 627,294.28, 865,475.40 and 355,318.96 is: 490,232.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,294.28 : 865,475.40 = 355,318.96 : x
  2. Step 2: Convert to fraction form
    627,294.28/865,475.40 = 355,318.96/x
  3. Step 3: Cross multiply
    627,294.28x = 865,475.40 × 355,318.96
  4. Step 4: Simplify right side
    627,294.28x = 307,519,819,033.58
  5. Step 5: Solve for x
    x = 307,519,819,033.58/627,294.28
  6. Step 6: Final answer
    x = 490,232.14

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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.