Home / 1,326,981.80-1,990,472.70-329,709.80

Finding the Fourth Proportional to 1,326,981.80, 1,990,472.70 and 329,709.80

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Solution

The fourth proportional to 1,326,981.80, 1,990,472.70 and 329,709.80 is: 494,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,981.80 : 1,990,472.70 = 329,709.80 : x
  2. Step 2: Convert to fraction form
    1,326,981.80/1,990,472.70 = 329,709.80/x
  3. Step 3: Cross multiply
    1,326,981.80x = 1,990,472.70 × 329,709.80
  4. Step 4: Simplify right side
    1,326,981.80x = 656,278,355,822.46
  5. Step 5: Solve for x
    x = 656,278,355,822.46/1,326,981.80
  6. Step 6: Final answer
    x = 494,564.70

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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.