Home / 1,543,449.42-2,315,261.62-478,642.86

Finding the Fourth Proportional to 1,543,449.42, 2,315,261.62 and 478,642.86

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Solution

The fourth proportional to 1,543,449.42, 2,315,261.62 and 478,642.86 is: 717,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,449.42 : 2,315,261.62 = 478,642.86 : x
  2. Step 2: Convert to fraction form
    1,543,449.42/2,315,261.62 = 478,642.86/x
  3. Step 3: Cross multiply
    1,543,449.42x = 2,315,261.62 × 478,642.86
  4. Step 4: Simplify right side
    1,543,449.42x = 1,108,183,443,445.03
  5. Step 5: Solve for x
    x = 1,108,183,443,445.03/1,543,449.42
  6. Step 6: Final answer
    x = 717,991.42

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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.