Home / 766,610.14-1,057,907.44-422,477.86

Finding the Fourth Proportional to 766,610.14, 1,057,907.44 and 422,477.86

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Solution

The fourth proportional to 766,610.14, 1,057,907.44 and 422,477.86 is: 583,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,610.14 : 1,057,907.44 = 422,477.86 : x
  2. Step 2: Convert to fraction form
    766,610.14/1,057,907.44 = 422,477.86/x
  3. Step 3: Cross multiply
    766,610.14x = 1,057,907.44 × 422,477.86
  4. Step 4: Simplify right side
    766,610.14x = 446,942,471,329.28
  5. Step 5: Solve for x
    x = 446,942,471,329.28/766,610.14
  6. Step 6: Final answer
    x = 583,011.43

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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.