Home / 826,388.50-1,240,247.04-427,146.22

Finding the Fourth Proportional to 826,388.50, 1,240,247.04 and 427,146.22

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Solution

The fourth proportional to 826,388.50, 1,240,247.04 and 427,146.22 is: 641,062.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,388.50 : 1,240,247.04 = 427,146.22 : x
  2. Step 2: Convert to fraction form
    826,388.50/1,240,247.04 = 427,146.22/x
  3. Step 3: Cross multiply
    826,388.50x = 1,240,247.04 × 427,146.22
  4. Step 4: Simplify right side
    826,388.50x = 529,766,835,002.19
  5. Step 5: Solve for x
    x = 529,766,835,002.19/826,388.50
  6. Step 6: Final answer
    x = 641,062.69

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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.