Home / 672,780.72-928,430.62-366,856.33

Finding the Fourth Proportional to 672,780.72, 928,430.62 and 366,856.33

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Solution

The fourth proportional to 672,780.72, 928,430.62 and 366,856.33 is: 506,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,780.72 : 928,430.62 = 366,856.33 : x
  2. Step 2: Convert to fraction form
    672,780.72/928,430.62 = 366,856.33/x
  3. Step 3: Cross multiply
    672,780.72x = 928,430.62 × 366,856.33
  4. Step 4: Simplify right side
    672,780.72x = 340,600,649,912.83
  5. Step 5: Solve for x
    x = 340,600,649,912.83/672,780.72
  6. Step 6: Final answer
    x = 506,258.04

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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.