Home / 764,621.50-1,055,178.93-425,089.75

Finding the Fourth Proportional to 764,621.50, 1,055,178.93 and 425,089.75

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Solution

The fourth proportional to 764,621.50, 1,055,178.93 and 425,089.75 is: 586,624.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,621.50 : 1,055,178.93 = 425,089.75 : x
  2. Step 2: Convert to fraction form
    764,621.50/1,055,178.93 = 425,089.75/x
  3. Step 3: Cross multiply
    764,621.50x = 1,055,178.93 × 425,089.75
  4. Step 4: Simplify right side
    764,621.50x = 448,545,747,558.97
  5. Step 5: Solve for x
    x = 448,545,747,558.97/764,621.50
  6. Step 6: Final answer
    x = 586,624.56

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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.