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Finding the Fourth Proportional to 887,071.35, 1,330,607.03 and 818,642.55

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Solution

The fourth proportional to 887,071.35, 1,330,607.03 and 818,642.55 is: 1,227,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,071.35 : 1,330,607.03 = 818,642.55 : x
  2. Step 2: Convert to fraction form
    887,071.35/1,330,607.03 = 818,642.55/x
  3. Step 3: Cross multiply
    887,071.35x = 1,330,607.03 × 818,642.55
  4. Step 4: Simplify right side
    887,071.35x = 1,089,291,527,993.91
  5. Step 5: Solve for x
    x = 1,089,291,527,993.91/887,071.35
  6. Step 6: Final answer
    x = 1,227,963.83

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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.