Home / 957,671.81-1,321,546.10-522,078.78

Finding the Fourth Proportional to 957,671.81, 1,321,546.10 and 522,078.78

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Solution

The fourth proportional to 957,671.81, 1,321,546.10 and 522,078.78 is: 720,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,671.81 : 1,321,546.10 = 522,078.78 : x
  2. Step 2: Convert to fraction form
    957,671.81/1,321,546.10 = 522,078.78/x
  3. Step 3: Cross multiply
    957,671.81x = 1,321,546.10 × 522,078.78
  4. Step 4: Simplify right side
    957,671.81x = 689,951,172,991.36
  5. Step 5: Solve for x
    x = 689,951,172,991.36/957,671.81
  6. Step 6: Final answer
    x = 720,446.37

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1.5x scale

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.