Home / 1,284,753.47-1,925,027.85-777,777.80

Finding the Fourth Proportional to 1,284,753.47, 1,925,027.85 and 777,777.80

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Solution

The fourth proportional to 1,284,753.47, 1,925,027.85 and 777,777.80 is: 1,165,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,753.47 : 1,925,027.85 = 777,777.80 : x
  2. Step 2: Convert to fraction form
    1,284,753.47/1,925,027.85 = 777,777.80/x
  3. Step 3: Cross multiply
    1,284,753.47x = 1,925,027.85 × 777,777.80
  4. Step 4: Simplify right side
    1,284,753.47x = 1,497,243,926,111.73
  5. Step 5: Solve for x
    x = 1,497,243,926,111.73/1,284,753.47
  6. Step 6: Final answer
    x = 1,165,393.95

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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.