Home / 1,217,559.80-1,680,234.49-673,718.51

Finding the Fourth Proportional to 1,217,559.80, 1,680,234.49 and 673,718.51

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Solution

The fourth proportional to 1,217,559.80, 1,680,234.49 and 673,718.51 is: 929,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,559.80 : 1,680,234.49 = 673,718.51 : x
  2. Step 2: Convert to fraction form
    1,217,559.80/1,680,234.49 = 673,718.51/x
  3. Step 3: Cross multiply
    1,217,559.80x = 1,680,234.49 × 673,718.51
  4. Step 4: Simplify right side
    1,217,559.80x = 1,132,005,077,053.41
  5. Step 5: Solve for x
    x = 1,132,005,077,053.41/1,217,559.80
  6. Step 6: Final answer
    x = 929,732.63

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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.