Home / 764,199.90-1,146,263.40-258,711.30

Finding the Fourth Proportional to 764,199.90, 1,146,263.40 and 258,711.30

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Solution

The fourth proportional to 764,199.90, 1,146,263.40 and 258,711.30 is: 388,054.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,199.90 : 1,146,263.40 = 258,711.30 : x
  2. Step 2: Convert to fraction form
    764,199.90/1,146,263.40 = 258,711.30/x
  3. Step 3: Cross multiply
    764,199.90x = 1,146,263.40 × 258,711.30
  4. Step 4: Simplify right side
    764,199.90x = 296,551,294,356.42
  5. Step 5: Solve for x
    x = 296,551,294,356.42/764,199.90
  6. Step 6: Final answer
    x = 388,054.61

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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.