Home / 1,543,415.86-2,129,928.72-855,102.16

Finding the Fourth Proportional to 1,543,415.86, 2,129,928.72 and 855,102.16

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Solution

The fourth proportional to 1,543,415.86, 2,129,928.72 and 855,102.16 is: 1,180,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,415.86 : 2,129,928.72 = 855,102.16 : x
  2. Step 2: Convert to fraction form
    1,543,415.86/2,129,928.72 = 855,102.16/x
  3. Step 3: Cross multiply
    1,543,415.86x = 2,129,928.72 × 855,102.16
  4. Step 4: Simplify right side
    1,543,415.86x = 1,821,306,649,118.04
  5. Step 5: Solve for x
    x = 1,821,306,649,118.04/1,543,415.86
  6. Step 6: Final answer
    x = 1,180,049.20

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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.