Home / 864,865.20-1,297,297.80-823,530.90

Finding the Fourth Proportional to 864,865.20, 1,297,297.80 and 823,530.90

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Solution

The fourth proportional to 864,865.20, 1,297,297.80 and 823,530.90 is: 1,235,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,865.20 : 1,297,297.80 = 823,530.90 : x
  2. Step 2: Convert to fraction form
    864,865.20/1,297,297.80 = 823,530.90/x
  3. Step 3: Cross multiply
    864,865.20x = 1,297,297.80 × 823,530.90
  4. Step 4: Simplify right side
    864,865.20x = 1,068,364,824,802.02
  5. Step 5: Solve for x
    x = 1,068,364,824,802.02/864,865.20
  6. Step 6: Final answer
    x = 1,235,296.35

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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.