Home / 1,139,233.65-1,707,355.62-838,305.15

Finding the Fourth Proportional to 1,139,233.65, 1,707,355.62 and 838,305.15

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Solution

The fourth proportional to 1,139,233.65, 1,707,355.62 and 838,305.15 is: 1,256,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,233.65 : 1,707,355.62 = 838,305.15 : x
  2. Step 2: Convert to fraction form
    1,139,233.65/1,707,355.62 = 838,305.15/x
  3. Step 3: Cross multiply
    1,139,233.65x = 1,707,355.62 × 838,305.15
  4. Step 4: Simplify right side
    1,139,233.65x = 1,431,285,009,127.44
  5. Step 5: Solve for x
    x = 1,431,285,009,127.44/1,139,233.65
  6. Step 6: Final answer
    x = 1,256,357.74

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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.