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Finding the Fourth Proportional to 437,597.20, 656,395.80 and 280,003.60

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Solution

The fourth proportional to 437,597.20, 656,395.80 and 280,003.60 is: 420,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,597.20 : 656,395.80 = 280,003.60 : x
  2. Step 2: Convert to fraction form
    437,597.20/656,395.80 = 280,003.60/x
  3. Step 3: Cross multiply
    437,597.20x = 656,395.80 × 280,003.60
  4. Step 4: Simplify right side
    437,597.20x = 183,793,187,024.88
  5. Step 5: Solve for x
    x = 183,793,187,024.88/437,597.20
  6. Step 6: Final answer
    x = 420,005.40

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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.