Home / 1,207,320.13-1,665,738.45-723,708.82

Finding the Fourth Proportional to 1,207,320.13, 1,665,738.45 and 723,708.82

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Solution

The fourth proportional to 1,207,320.13, 1,665,738.45 and 723,708.82 is: 998,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,320.13 : 1,665,738.45 = 723,708.82 : x
  2. Step 2: Convert to fraction form
    1,207,320.13/1,665,738.45 = 723,708.82/x
  3. Step 3: Cross multiply
    1,207,320.13x = 1,665,738.45 × 723,708.82
  4. Step 4: Simplify right side
    1,207,320.13x = 1,205,509,608,078.13
  5. Step 5: Solve for x
    x = 1,205,509,608,078.13/1,207,320.13
  6. Step 6: Final answer
    x = 998,500.38

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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.