Home / 1,230,972.39-1,699,025.33-721,838.79

Finding the Fourth Proportional to 1,230,972.39, 1,699,025.33 and 721,838.79

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Solution

The fourth proportional to 1,230,972.39, 1,699,025.33 and 721,838.79 is: 996,303.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,972.39 : 1,699,025.33 = 721,838.79 : x
  2. Step 2: Convert to fraction form
    1,230,972.39/1,699,025.33 = 721,838.79/x
  3. Step 3: Cross multiply
    1,230,972.39x = 1,699,025.33 × 721,838.79
  4. Step 4: Simplify right side
    1,230,972.39x = 1,226,422,382,515.79
  5. Step 5: Solve for x
    x = 1,226,422,382,515.79/1,230,972.39
  6. Step 6: Final answer
    x = 996,303.73

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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.