Home / 766,380.40-1,057,525.48-471,983.52

Finding the Fourth Proportional to 766,380.40, 1,057,525.48 and 471,983.52

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Solution

The fourth proportional to 766,380.40, 1,057,525.48 and 471,983.52 is: 651,288.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,380.40 : 1,057,525.48 = 471,983.52 : x
  2. Step 2: Convert to fraction form
    766,380.40/1,057,525.48 = 471,983.52/x
  3. Step 3: Cross multiply
    766,380.40x = 1,057,525.48 × 471,983.52
  4. Step 4: Simplify right side
    766,380.40x = 499,134,598,540.09
  5. Step 5: Solve for x
    x = 499,134,598,540.09/766,380.40
  6. Step 6: Final answer
    x = 651,288.31

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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.