Home / 801,090.40-1,201,246.80-445,727.20

Finding the Fourth Proportional to 801,090.40, 1,201,246.80 and 445,727.20

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Solution

The fourth proportional to 801,090.40, 1,201,246.80 and 445,727.20 is: 668,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,090.40 : 1,201,246.80 = 445,727.20 : x
  2. Step 2: Convert to fraction form
    801,090.40/1,201,246.80 = 445,727.20/x
  3. Step 3: Cross multiply
    801,090.40x = 1,201,246.80 × 445,727.20
  4. Step 4: Simplify right side
    801,090.40x = 535,428,372,672.96
  5. Step 5: Solve for x
    x = 535,428,372,672.96/801,090.40
  6. Step 6: Final answer
    x = 668,374.47

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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.