Home / 845,118.18-1,268,175.45-313,012.86

Finding the Fourth Proportional to 845,118.18, 1,268,175.45 and 313,012.86

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Solution

The fourth proportional to 845,118.18, 1,268,175.45 and 313,012.86 is: 469,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,118.18 : 1,268,175.45 = 313,012.86 : x
  2. Step 2: Convert to fraction form
    845,118.18/1,268,175.45 = 313,012.86/x
  3. Step 3: Cross multiply
    845,118.18x = 1,268,175.45 × 313,012.86
  4. Step 4: Simplify right side
    845,118.18x = 396,955,224,586.29
  5. Step 5: Solve for x
    x = 396,955,224,586.29/845,118.18
  6. Step 6: Final answer
    x = 469,703.80

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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.