Home / 1,121,945.76-1,681,672.08-854,825.64

Finding the Fourth Proportional to 1,121,945.76, 1,681,672.08 and 854,825.64

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Solution

The fourth proportional to 1,121,945.76, 1,681,672.08 and 854,825.64 is: 1,281,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,945.76 : 1,681,672.08 = 854,825.64 : x
  2. Step 2: Convert to fraction form
    1,121,945.76/1,681,672.08 = 854,825.64/x
  3. Step 3: Cross multiply
    1,121,945.76x = 1,681,672.08 × 854,825.64
  4. Step 4: Simplify right side
    1,121,945.76x = 1,437,536,412,056.13
  5. Step 5: Solve for x
    x = 1,437,536,412,056.13/1,121,945.76
  6. Step 6: Final answer
    x = 1,281,288.69

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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.