Home / 1,243,320.39-1,715,684.00-699,347.88

Finding the Fourth Proportional to 1,243,320.39, 1,715,684.00 and 699,347.88

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Solution

The fourth proportional to 1,243,320.39, 1,715,684.00 and 699,347.88 is: 965,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,320.39 : 1,715,684.00 = 699,347.88 : x
  2. Step 2: Convert to fraction form
    1,243,320.39/1,715,684.00 = 699,347.88/x
  3. Step 3: Cross multiply
    1,243,320.39x = 1,715,684.00 × 699,347.88
  4. Step 4: Simplify right side
    1,243,320.39x = 1,199,859,964,653.18
  5. Step 5: Solve for x
    x = 1,199,859,964,653.18/1,243,320.39
  6. Step 6: Final answer
    x = 965,044.87

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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.