Home / 1,207,319.88-1,665,738.11-723,708.57

Finding the Fourth Proportional to 1,207,319.88, 1,665,738.11 and 723,708.57

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Solution

The fourth proportional to 1,207,319.88, 1,665,738.11 and 723,708.57 is: 998,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,319.88 : 1,665,738.11 = 723,708.57 : x
  2. Step 2: Convert to fraction form
    1,207,319.88/1,665,738.11 = 723,708.57/x
  3. Step 3: Cross multiply
    1,207,319.88x = 1,665,738.11 × 723,708.57
  4. Step 4: Simplify right side
    1,207,319.88x = 1,205,508,941,964.06
  5. Step 5: Solve for x
    x = 1,205,508,941,964.06/1,207,319.88
  6. Step 6: Final answer
    x = 998,500.03

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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.