Home / 1,245,013.72-1,868,103.80-613,583.08

Finding the Fourth Proportional to 1,245,013.72, 1,868,103.80 and 613,583.08

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Solution

The fourth proportional to 1,245,013.72, 1,868,103.80 and 613,583.08 is: 920,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,013.72 : 1,868,103.80 = 613,583.08 : x
  2. Step 2: Convert to fraction form
    1,245,013.72/1,868,103.80 = 613,583.08/x
  3. Step 3: Cross multiply
    1,245,013.72x = 1,868,103.80 × 613,583.08
  4. Step 4: Simplify right side
    1,245,013.72x = 1,146,236,883,363.70
  5. Step 5: Solve for x
    x = 1,146,236,883,363.70/1,245,013.72
  6. Step 6: Final answer
    x = 920,662.05

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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.