Home / 855,650.96-1,180,427.66-515,930.48

Finding the Fourth Proportional to 855,650.96, 1,180,427.66 and 515,930.48

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Solution

The fourth proportional to 855,650.96, 1,180,427.66 and 515,930.48 is: 711,760.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,650.96 : 1,180,427.66 = 515,930.48 : x
  2. Step 2: Convert to fraction form
    855,650.96/1,180,427.66 = 515,930.48/x
  3. Step 3: Cross multiply
    855,650.96x = 1,180,427.66 × 515,930.48
  4. Step 4: Simplify right side
    855,650.96x = 609,018,609,229.08
  5. Step 5: Solve for x
    x = 609,018,609,229.08/855,650.96
  6. Step 6: Final answer
    x = 711,760.56

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1.5x scale

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.