Home / 1,286,142.27-1,929,614.94-774,368.43

Finding the Fourth Proportional to 1,286,142.27, 1,929,614.94 and 774,368.43

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Solution

The fourth proportional to 1,286,142.27, 1,929,614.94 and 774,368.43 is: 1,161,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,142.27 : 1,929,614.94 = 774,368.43 : x
  2. Step 2: Convert to fraction form
    1,286,142.27/1,929,614.94 = 774,368.43/x
  3. Step 3: Cross multiply
    1,286,142.27x = 1,929,614.94 × 774,368.43
  4. Step 4: Simplify right side
    1,286,142.27x = 1,494,232,891,592.34
  5. Step 5: Solve for x
    x = 1,494,232,891,592.34/1,286,142.27
  6. Step 6: Final answer
    x = 1,161,794.40

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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.