Home / 764,698.80-1,147,048.20-658,410.60

Finding the Fourth Proportional to 764,698.80, 1,147,048.20 and 658,410.60

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Solution

The fourth proportional to 764,698.80, 1,147,048.20 and 658,410.60 is: 987,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,698.80 : 1,147,048.20 = 658,410.60 : x
  2. Step 2: Convert to fraction form
    764,698.80/1,147,048.20 = 658,410.60/x
  3. Step 3: Cross multiply
    764,698.80x = 1,147,048.20 × 658,410.60
  4. Step 4: Simplify right side
    764,698.80x = 755,228,693,590.92
  5. Step 5: Solve for x
    x = 755,228,693,590.92/764,698.80
  6. Step 6: Final answer
    x = 987,615.90

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Similar ratio
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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.