Home / 986,815.27-1,361,816.22-578,924.07

Finding the Fourth Proportional to 986,815.27, 1,361,816.22 and 578,924.07

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Solution

The fourth proportional to 986,815.27, 1,361,816.22 and 578,924.07 is: 798,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,815.27 : 1,361,816.22 = 578,924.07 : x
  2. Step 2: Convert to fraction form
    986,815.27/1,361,816.22 = 578,924.07/x
  3. Step 3: Cross multiply
    986,815.27x = 1,361,816.22 × 578,924.07
  4. Step 4: Simplify right side
    986,815.27x = 788,388,188,674.42
  5. Step 5: Solve for x
    x = 788,388,188,674.42/986,815.27
  6. Step 6: Final answer
    x = 798,921.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.