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Finding the Fourth Proportional to 453,379.20, 679,485.60 and 275,697.60

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Solution

The fourth proportional to 453,379.20, 679,485.60 and 275,697.60 is: 413,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,379.20 : 679,485.60 = 275,697.60 : x
  2. Step 2: Convert to fraction form
    453,379.20/679,485.60 = 275,697.60/x
  3. Step 3: Cross multiply
    453,379.20x = 679,485.60 × 275,697.60
  4. Step 4: Simplify right side
    453,379.20x = 187,332,549,154.56
  5. Step 5: Solve for x
    x = 187,332,549,154.56/453,379.20
  6. Step 6: Final answer
    x = 413,191.76

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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.