Home / 1,288,174.80-1,932,252.60-389,614.80

Finding the Fourth Proportional to 1,288,174.80, 1,932,252.60 and 389,614.80

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Solution

The fourth proportional to 1,288,174.80, 1,932,252.60 and 389,614.80 is: 584,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,174.80 : 1,932,252.60 = 389,614.80 : x
  2. Step 2: Convert to fraction form
    1,288,174.80/1,932,252.60 = 389,614.80/x
  3. Step 3: Cross multiply
    1,288,174.80x = 1,932,252.60 × 389,614.80
  4. Step 4: Simplify right side
    1,288,174.80x = 752,834,210,298.48
  5. Step 5: Solve for x
    x = 752,834,210,298.48/1,288,174.80
  6. Step 6: Final answer
    x = 584,419.30

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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.