Home / 1,245,121.60-1,867,682.40-613,953.40

Finding the Fourth Proportional to 1,245,121.60, 1,867,682.40 and 613,953.40

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Solution

The fourth proportional to 1,245,121.60, 1,867,682.40 and 613,953.40 is: 920,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,121.60 : 1,867,682.40 = 613,953.40 : x
  2. Step 2: Convert to fraction form
    1,245,121.60/1,867,682.40 = 613,953.40/x
  3. Step 3: Cross multiply
    1,245,121.60x = 1,867,682.40 × 613,953.40
  4. Step 4: Simplify right side
    1,245,121.60x = 1,146,669,959,600.16
  5. Step 5: Solve for x
    x = 1,146,669,959,600.16/1,245,121.60
  6. Step 6: Final answer
    x = 920,930.10

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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.