Home / 864,835.20-1,297,252.80-823,500.90

Finding the Fourth Proportional to 864,835.20, 1,297,252.80 and 823,500.90

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Solution

The fourth proportional to 864,835.20, 1,297,252.80 and 823,500.90 is: 1,235,251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,835.20 : 1,297,252.80 = 823,500.90 : x
  2. Step 2: Convert to fraction form
    864,835.20/1,297,252.80 = 823,500.90/x
  3. Step 3: Cross multiply
    864,835.20x = 1,297,252.80 × 823,500.90
  4. Step 4: Simplify right side
    864,835.20x = 1,068,288,848,327.52
  5. Step 5: Solve for x
    x = 1,068,288,848,327.52/864,835.20
  6. Step 6: Final answer
    x = 1,235,251.35

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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.