Home / 1,295,436.80-1,943,155.20-408,972.80

Finding the Fourth Proportional to 1,295,436.80, 1,943,155.20 and 408,972.80

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Solution

The fourth proportional to 1,295,436.80, 1,943,155.20 and 408,972.80 is: 613,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,436.80 : 1,943,155.20 = 408,972.80 : x
  2. Step 2: Convert to fraction form
    1,295,436.80/1,943,155.20 = 408,972.80/x
  3. Step 3: Cross multiply
    1,295,436.80x = 1,943,155.20 × 408,972.80
  4. Step 4: Simplify right side
    1,295,436.80x = 794,697,622,978.56
  5. Step 5: Solve for x
    x = 794,697,622,978.56/1,295,436.80
  6. Step 6: Final answer
    x = 613,459.20

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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.