Home / 1,329,436.80-1,994,155.20-442,972.80

Finding the Fourth Proportional to 1,329,436.80, 1,994,155.20 and 442,972.80

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Solution

The fourth proportional to 1,329,436.80, 1,994,155.20 and 442,972.80 is: 664,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,436.80 : 1,994,155.20 = 442,972.80 : x
  2. Step 2: Convert to fraction form
    1,329,436.80/1,994,155.20 = 442,972.80/x
  3. Step 3: Cross multiply
    1,329,436.80x = 1,994,155.20 × 442,972.80
  4. Step 4: Simplify right side
    1,329,436.80x = 883,356,512,578.56
  5. Step 5: Solve for x
    x = 883,356,512,578.56/1,329,436.80
  6. Step 6: Final answer
    x = 664,459.20

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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.