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Finding the Fourth Proportional to 719,808.68, 1,080,377.20 and 365,071.80

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Solution

The fourth proportional to 719,808.68, 1,080,377.20 and 365,071.80 is: 547,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,808.68 : 1,080,377.20 = 365,071.80 : x
  2. Step 2: Convert to fraction form
    719,808.68/1,080,377.20 = 365,071.80/x
  3. Step 3: Cross multiply
    719,808.68x = 1,080,377.20 × 365,071.80
  4. Step 4: Simplify right side
    719,808.68x = 394,415,249,082.96
  5. Step 5: Solve for x
    x = 394,415,249,082.96/719,808.68
  6. Step 6: Final answer
    x = 547,944.56

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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.