Home / 1,288,340.10-1,928,573.55-1,004,904.90

Finding the Fourth Proportional to 1,288,340.10, 1,928,573.55 and 1,004,904.90

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Solution

The fourth proportional to 1,288,340.10, 1,928,573.55 and 1,004,904.90 is: 1,504,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,340.10 : 1,928,573.55 = 1,004,904.90 : x
  2. Step 2: Convert to fraction form
    1,288,340.10/1,928,573.55 = 1,004,904.90/x
  3. Step 3: Cross multiply
    1,288,340.10x = 1,928,573.55 × 1,004,904.90
  4. Step 4: Simplify right side
    1,288,340.10x = 1,938,033,010,405.40
  5. Step 5: Solve for x
    x = 1,938,033,010,405.40/1,288,340.10
  6. Step 6: Final answer
    x = 1,504,286.80

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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.