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Finding the Fourth Proportional to 575,660.80, 863,491.20 and 365,708.80

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Solution

The fourth proportional to 575,660.80, 863,491.20 and 365,708.80 is: 548,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,660.80 : 863,491.20 = 365,708.80 : x
  2. Step 2: Convert to fraction form
    575,660.80/863,491.20 = 365,708.80/x
  3. Step 3: Cross multiply
    575,660.80x = 863,491.20 × 365,708.80
  4. Step 4: Simplify right side
    575,660.80x = 315,786,330,562.56
  5. Step 5: Solve for x
    x = 315,786,330,562.56/575,660.80
  6. Step 6: Final answer
    x = 548,563.20

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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.