Home / 764,062.90-1,145,381.78-258,271.96

Finding the Fourth Proportional to 764,062.90, 1,145,381.78 and 258,271.96

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Solution

The fourth proportional to 764,062.90, 1,145,381.78 and 258,271.96 is: 387,167.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,062.90 : 1,145,381.78 = 258,271.96 : x
  2. Step 2: Convert to fraction form
    764,062.90/1,145,381.78 = 258,271.96/x
  3. Step 3: Cross multiply
    764,062.90x = 1,145,381.78 × 258,271.96
  4. Step 4: Simplify right side
    764,062.90x = 295,819,997,268.89
  5. Step 5: Solve for x
    x = 295,819,997,268.89/764,062.90
  6. Step 6: Final answer
    x = 387,167.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.