Home / 827,066.20-1,240,772.10-266,157.40

Finding the Fourth Proportional to 827,066.20, 1,240,772.10 and 266,157.40

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Solution

The fourth proportional to 827,066.20, 1,240,772.10 and 266,157.40 is: 399,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,066.20 : 1,240,772.10 = 266,157.40 : x
  2. Step 2: Convert to fraction form
    827,066.20/1,240,772.10 = 266,157.40/x
  3. Step 3: Cross multiply
    827,066.20x = 1,240,772.10 × 266,157.40
  4. Step 4: Simplify right side
    827,066.20x = 330,240,676,128.54
  5. Step 5: Solve for x
    x = 330,240,676,128.54/827,066.20
  6. Step 6: Final answer
    x = 399,291.71

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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.