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Finding the Fourth Proportional to 652,220.53, 978,336 and 267,870.35

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Solution

The fourth proportional to 652,220.53, 978,336 and 267,870.35 is: 401,807.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,220.53 : 978,336 = 267,870.35 : x
  2. Step 2: Convert to fraction form
    652,220.53/978,336 = 267,870.35/x
  3. Step 3: Cross multiply
    652,220.53x = 978,336 × 267,870.35
  4. Step 4: Simplify right side
    652,220.53x = 262,067,206,737.60
  5. Step 5: Solve for x
    x = 262,067,206,737.60/652,220.53
  6. Step 6: Final answer
    x = 401,807.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.