Home / 1,200,849.88-1,656,901.52-717,320.38

Finding the Fourth Proportional to 1,200,849.88, 1,656,901.52 and 717,320.38

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Solution

The fourth proportional to 1,200,849.88, 1,656,901.52 and 717,320.38 is: 989,740.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,849.88 : 1,656,901.52 = 717,320.38 : x
  2. Step 2: Convert to fraction form
    1,200,849.88/1,656,901.52 = 717,320.38/x
  3. Step 3: Cross multiply
    1,200,849.88x = 1,656,901.52 × 717,320.38
  4. Step 4: Simplify right side
    1,200,849.88x = 1,188,529,227,948.98
  5. Step 5: Solve for x
    x = 1,188,529,227,948.98/1,200,849.88
  6. Step 6: Final answer
    x = 989,740.06

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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.