Home / 986,855.46-1,361,784.52-557,178

Finding the Fourth Proportional to 986,855.46, 1,361,784.52 and 557,178

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Solution

The fourth proportional to 986,855.46, 1,361,784.52 and 557,178 is: 768,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,855.46 : 1,361,784.52 = 557,178 : x
  2. Step 2: Convert to fraction form
    986,855.46/1,361,784.52 = 557,178/x
  3. Step 3: Cross multiply
    986,855.46x = 1,361,784.52 × 557,178
  4. Step 4: Simplify right side
    986,855.46x = 758,756,375,284.56
  5. Step 5: Solve for x
    x = 758,756,375,284.56/986,855.46
  6. Step 6: Final answer
    x = 768,862.72

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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.