Home / 764,623.20-1,146,218.21-258,830.24

Finding the Fourth Proportional to 764,623.20, 1,146,218.21 and 258,830.24

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Solution

The fourth proportional to 764,623.20, 1,146,218.21 and 258,830.24 is: 388,002.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,623.20 : 1,146,218.21 = 258,830.24 : x
  2. Step 2: Convert to fraction form
    764,623.20/1,146,218.21 = 258,830.24/x
  3. Step 3: Cross multiply
    764,623.20x = 1,146,218.21 × 258,830.24
  4. Step 4: Simplify right side
    764,623.20x = 296,675,927,361.43
  5. Step 5: Solve for x
    x = 296,675,927,361.43/764,623.20
  6. Step 6: Final answer
    x = 388,002.78

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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.