Home / 555,738.12-766,933.02-340,754.40

Finding the Fourth Proportional to 555,738.12, 766,933.02 and 340,754.40

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Solution

The fourth proportional to 555,738.12, 766,933.02 and 340,754.40 is: 470,249.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,738.12 : 766,933.02 = 340,754.40 : x
  2. Step 2: Convert to fraction form
    555,738.12/766,933.02 = 340,754.40/x
  3. Step 3: Cross multiply
    555,738.12x = 766,933.02 × 340,754.40
  4. Step 4: Simplify right side
    555,738.12x = 261,335,801,070.29
  5. Step 5: Solve for x
    x = 261,335,801,070.29/555,738.12
  6. Step 6: Final answer
    x = 470,249.91

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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.