Home / 764,437.72-1,146,828.30-258,969.64

Finding the Fourth Proportional to 764,437.72, 1,146,828.30 and 258,969.64

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Solution

The fourth proportional to 764,437.72, 1,146,828.30 and 258,969.64 is: 388,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,437.72 : 1,146,828.30 = 258,969.64 : x
  2. Step 2: Convert to fraction form
    764,437.72/1,146,828.30 = 258,969.64/x
  3. Step 3: Cross multiply
    764,437.72x = 1,146,828.30 × 258,969.64
  4. Step 4: Simplify right side
    764,437.72x = 296,993,711,992.81
  5. Step 5: Solve for x
    x = 296,993,711,992.81/764,437.72
  6. Step 6: Final answer
    x = 388,512.63

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1.5x scale

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.