Home / 764,586.80-1,146,491.40-449,140.40

Finding the Fourth Proportional to 764,586.80, 1,146,491.40 and 449,140.40

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Solution

The fourth proportional to 764,586.80, 1,146,491.40 and 449,140.40 is: 673,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,586.80 : 1,146,491.40 = 449,140.40 : x
  2. Step 2: Convert to fraction form
    764,586.80/1,146,491.40 = 449,140.40/x
  3. Step 3: Cross multiply
    764,586.80x = 1,146,491.40 × 449,140.40
  4. Step 4: Simplify right side
    764,586.80x = 514,935,605,992.56
  5. Step 5: Solve for x
    x = 514,935,605,992.56/764,586.80
  6. Step 6: Final answer
    x = 673,482.21

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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.