Home / 1,386,516.51-2,079,747.07-628,216.65

Finding the Fourth Proportional to 1,386,516.51, 2,079,747.07 and 628,216.65

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Solution

The fourth proportional to 1,386,516.51, 2,079,747.07 and 628,216.65 is: 942,312.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,516.51 : 2,079,747.07 = 628,216.65 : x
  2. Step 2: Convert to fraction form
    1,386,516.51/2,079,747.07 = 628,216.65/x
  3. Step 3: Cross multiply
    1,386,516.51x = 2,079,747.07 × 628,216.65
  4. Step 4: Simplify right side
    1,386,516.51x = 1,306,531,737,162.72
  5. Step 5: Solve for x
    x = 1,306,531,737,162.72/1,386,516.51
  6. Step 6: Final answer
    x = 942,312.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.