Home / 1,320,782.76-1,981,423.01-500,367.12

Finding the Fourth Proportional to 1,320,782.76, 1,981,423.01 and 500,367.12

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Solution

The fourth proportional to 1,320,782.76, 1,981,423.01 and 500,367.12 is: 750,644.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,782.76 : 1,981,423.01 = 500,367.12 : x
  2. Step 2: Convert to fraction form
    1,320,782.76/1,981,423.01 = 500,367.12/x
  3. Step 3: Cross multiply
    1,320,782.76x = 1,981,423.01 × 500,367.12
  4. Step 4: Simplify right side
    1,320,782.76x = 991,438,922,513.60
  5. Step 5: Solve for x
    x = 991,438,922,513.60/1,320,782.76
  6. Step 6: Final answer
    x = 750,644.96

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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.