Home / 943,780.74-1,413,033.39-509,944.20

Finding the Fourth Proportional to 943,780.74, 1,413,033.39 and 509,944.20

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Solution

The fourth proportional to 943,780.74, 1,413,033.39 and 509,944.20 is: 763,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,780.74 : 1,413,033.39 = 509,944.20 : x
  2. Step 2: Convert to fraction form
    943,780.74/1,413,033.39 = 509,944.20/x
  3. Step 3: Cross multiply
    943,780.74x = 1,413,033.39 × 509,944.20
  4. Step 4: Simplify right side
    943,780.74x = 720,568,181,636.84
  5. Step 5: Solve for x
    x = 720,568,181,636.84/943,780.74
  6. Step 6: Final answer
    x = 763,491.09

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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.