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Finding the Fourth Proportional to 486,533.20, 730,674.60 and 353,563.60

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Solution

The fourth proportional to 486,533.20, 730,674.60 and 353,563.60 is: 530,981.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,533.20 : 730,674.60 = 353,563.60 : x
  2. Step 2: Convert to fraction form
    486,533.20/730,674.60 = 353,563.60/x
  3. Step 3: Cross multiply
    486,533.20x = 730,674.60 × 353,563.60
  4. Step 4: Simplify right side
    486,533.20x = 258,339,942,004.56
  5. Step 5: Solve for x
    x = 258,339,942,004.56/486,533.20
  6. Step 6: Final answer
    x = 530,981.12

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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.