Home / 764,576.80-1,147,383.60-497,687.20

Finding the Fourth Proportional to 764,576.80, 1,147,383.60 and 497,687.20

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Solution

The fourth proportional to 764,576.80, 1,147,383.60 and 497,687.20 is: 746,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,576.80 : 1,147,383.60 = 497,687.20 : x
  2. Step 2: Convert to fraction form
    764,576.80/1,147,383.60 = 497,687.20/x
  3. Step 3: Cross multiply
    764,576.80x = 1,147,383.60 × 497,687.20
  4. Step 4: Simplify right side
    764,576.80x = 571,038,131,209.92
  5. Step 5: Solve for x
    x = 571,038,131,209.92/764,576.80
  6. Step 6: Final answer
    x = 746,868.24

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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.