Home / 864,815.72-1,297,292.70-303,976.04

Finding the Fourth Proportional to 864,815.72, 1,297,292.70 and 303,976.04

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Solution

The fourth proportional to 864,815.72, 1,297,292.70 and 303,976.04 is: 455,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,815.72 : 1,297,292.70 = 303,976.04 : x
  2. Step 2: Convert to fraction form
    864,815.72/1,297,292.70 = 303,976.04/x
  3. Step 3: Cross multiply
    864,815.72x = 1,297,292.70 × 303,976.04
  4. Step 4: Simplify right side
    864,815.72x = 394,345,897,666.91
  5. Step 5: Solve for x
    x = 394,345,897,666.91/864,815.72
  6. Step 6: Final answer
    x = 455,988.36

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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.