Home / 1,287,165.67-1,931,060.66-388,553.73

Finding the Fourth Proportional to 1,287,165.67, 1,931,060.66 and 388,553.73

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Solution

The fourth proportional to 1,287,165.67, 1,931,060.66 and 388,553.73 is: 582,924.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,165.67 : 1,931,060.66 = 388,553.73 : x
  2. Step 2: Convert to fraction form
    1,287,165.67/1,931,060.66 = 388,553.73/x
  3. Step 3: Cross multiply
    1,287,165.67x = 1,931,060.66 × 388,553.73
  4. Step 4: Simplify right side
    1,287,165.67x = 750,320,813,115.02
  5. Step 5: Solve for x
    x = 750,320,813,115.02/1,287,165.67
  6. Step 6: Final answer
    x = 582,924.82

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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.