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Finding the Fourth Proportional to 656,323.20, 984,484.80 and 404,380.80

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Solution

The fourth proportional to 656,323.20, 984,484.80 and 404,380.80 is: 606,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,323.20 : 984,484.80 = 404,380.80 : x
  2. Step 2: Convert to fraction form
    656,323.20/984,484.80 = 404,380.80/x
  3. Step 3: Cross multiply
    656,323.20x = 984,484.80 × 404,380.80
  4. Step 4: Simplify right side
    656,323.20x = 398,106,751,011.84
  5. Step 5: Solve for x
    x = 398,106,751,011.84/656,323.20
  6. Step 6: Final answer
    x = 606,571.20

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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.