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Finding the Fourth Proportional to 324,000.80, 485,126.40 and 324,000.80

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Solution

The fourth proportional to 324,000.80, 485,126.40 and 324,000.80 is: 485,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,000.80 : 485,126.40 = 324,000.80 : x
  2. Step 2: Convert to fraction form
    324,000.80/485,126.40 = 324,000.80/x
  3. Step 3: Cross multiply
    324,000.80x = 485,126.40 × 324,000.80
  4. Step 4: Simplify right side
    324,000.80x = 157,181,341,701.12
  5. Step 5: Solve for x
    x = 157,181,341,701.12/324,000.80
  6. Step 6: Final answer
    x = 485,126.40

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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.