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Finding the Fourth Proportional to 887,261.10, 1,330,891.65 and 818,832.30

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Solution

The fourth proportional to 887,261.10, 1,330,891.65 and 818,832.30 is: 1,228,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,261.10 : 1,330,891.65 = 818,832.30 : x
  2. Step 2: Convert to fraction form
    887,261.10/1,330,891.65 = 818,832.30/x
  3. Step 3: Cross multiply
    887,261.10x = 1,330,891.65 × 818,832.30
  4. Step 4: Simplify right side
    887,261.10x = 1,089,777,070,820.30
  5. Step 5: Solve for x
    x = 1,089,777,070,820.30/887,261.10
  6. Step 6: Final answer
    x = 1,228,248.45

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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.