Home / 981,653.22-1,472,207.67-621,589.86

Finding the Fourth Proportional to 981,653.22, 1,472,207.67 and 621,589.86

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Solution

The fourth proportional to 981,653.22, 1,472,207.67 and 621,589.86 is: 932,212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,653.22 : 1,472,207.67 = 621,589.86 : x
  2. Step 2: Convert to fraction form
    981,653.22/1,472,207.67 = 621,589.86/x
  3. Step 3: Cross multiply
    981,653.22x = 1,472,207.67 × 621,589.86
  4. Step 4: Simplify right side
    981,653.22x = 915,109,359,486.23
  5. Step 5: Solve for x
    x = 915,109,359,486.23/981,653.22
  6. Step 6: Final answer
    x = 932,212.46

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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.