Home / 665,570.20-998,501.10-266,110.60

Finding the Fourth Proportional to 665,570.20, 998,501.10 and 266,110.60

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Solution

The fourth proportional to 665,570.20, 998,501.10 and 266,110.60 is: 399,224.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,570.20 : 998,501.10 = 266,110.60 : x
  2. Step 2: Convert to fraction form
    665,570.20/998,501.10 = 266,110.60/x
  3. Step 3: Cross multiply
    665,570.20x = 998,501.10 × 266,110.60
  4. Step 4: Simplify right side
    665,570.20x = 265,711,726,821.66
  5. Step 5: Solve for x
    x = 265,711,726,821.66/665,570.20
  6. Step 6: Final answer
    x = 399,224.19

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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.