Home / 1,245,107.10-1,867,660.65-613,938.90

Finding the Fourth Proportional to 1,245,107.10, 1,867,660.65 and 613,938.90

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Solution

The fourth proportional to 1,245,107.10, 1,867,660.65 and 613,938.90 is: 920,908.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,107.10 : 1,867,660.65 = 613,938.90 : x
  2. Step 2: Convert to fraction form
    1,245,107.10/1,867,660.65 = 613,938.90/x
  3. Step 3: Cross multiply
    1,245,107.10x = 1,867,660.65 × 613,938.90
  4. Step 4: Simplify right side
    1,245,107.10x = 1,146,629,525,034.28
  5. Step 5: Solve for x
    x = 1,146,629,525,034.28/1,245,107.10
  6. Step 6: Final answer
    x = 920,908.35

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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.