Home / 1,515,325.50-2,091,197.98-861,934.77

Finding the Fourth Proportional to 1,515,325.50, 2,091,197.98 and 861,934.77

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Solution

The fourth proportional to 1,515,325.50, 2,091,197.98 and 861,934.77 is: 1,189,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,325.50 : 2,091,197.98 = 861,934.77 : x
  2. Step 2: Convert to fraction form
    1,515,325.50/2,091,197.98 = 861,934.77/x
  3. Step 3: Cross multiply
    1,515,325.50x = 2,091,197.98 × 861,934.77
  4. Step 4: Simplify right side
    1,515,325.50x = 1,802,476,239,918.94
  5. Step 5: Solve for x
    x = 1,802,476,239,918.94/1,515,325.50
  6. Step 6: Final answer
    x = 1,189,497.73

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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.