Home / 999,974.40-1,499,815.80-289,928.40

Finding the Fourth Proportional to 999,974.40, 1,499,815.80 and 289,928.40

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Solution

The fourth proportional to 999,974.40, 1,499,815.80 and 289,928.40 is: 434,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,974.40 : 1,499,815.80 = 289,928.40 : x
  2. Step 2: Convert to fraction form
    999,974.40/1,499,815.80 = 289,928.40/x
  3. Step 3: Cross multiply
    999,974.40x = 1,499,815.80 × 289,928.40
  4. Step 4: Simplify right side
    999,974.40x = 434,839,195,188.72
  5. Step 5: Solve for x
    x = 434,839,195,188.72/999,974.40
  6. Step 6: Final answer
    x = 434,850.33

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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.