Home / 764,909.84-1,055,581.80-425,370.80

Finding the Fourth Proportional to 764,909.84, 1,055,581.80 and 425,370.80

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Solution

The fourth proportional to 764,909.84, 1,055,581.80 and 425,370.80 is: 587,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,909.84 : 1,055,581.80 = 425,370.80 : x
  2. Step 2: Convert to fraction form
    764,909.84/1,055,581.80 = 425,370.80/x
  3. Step 3: Cross multiply
    764,909.84x = 1,055,581.80 × 425,370.80
  4. Step 4: Simplify right side
    764,909.84x = 449,013,674,731.44
  5. Step 5: Solve for x
    x = 449,013,674,731.44/764,909.84
  6. Step 6: Final answer
    x = 587,015.16

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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.