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Finding the Fourth Proportional to 900,405.80, 1,350,611 and 367,926.74

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Solution

The fourth proportional to 900,405.80, 1,350,611 and 367,926.74 is: 551,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,405.80 : 1,350,611 = 367,926.74 : x
  2. Step 2: Convert to fraction form
    900,405.80/1,350,611 = 367,926.74/x
  3. Step 3: Cross multiply
    900,405.80x = 1,350,611 × 367,926.74
  4. Step 4: Simplify right side
    900,405.80x = 496,925,902,238.14
  5. Step 5: Solve for x
    x = 496,925,902,238.14/900,405.80
  6. Step 6: Final answer
    x = 551,891.05

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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.