Home / 1,289,347.41-1,933,563.47-378,275.61

Finding the Fourth Proportional to 1,289,347.41, 1,933,563.47 and 378,275.61

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Solution

The fourth proportional to 1,289,347.41, 1,933,563.47 and 378,275.61 is: 567,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,347.41 : 1,933,563.47 = 378,275.61 : x
  2. Step 2: Convert to fraction form
    1,289,347.41/1,933,563.47 = 378,275.61/x
  3. Step 3: Cross multiply
    1,289,347.41x = 1,933,563.47 × 378,275.61
  4. Step 4: Simplify right side
    1,289,347.41x = 731,419,899,196.59
  5. Step 5: Solve for x
    x = 731,419,899,196.59/1,289,347.41
  6. Step 6: Final answer
    x = 567,279.15

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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.