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Finding the Fourth Proportional to 703,402.88, 970,765.44 and 401,642.24

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Solution

The fourth proportional to 703,402.88, 970,765.44 and 401,642.24 is: 554,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,402.88 : 970,765.44 = 401,642.24 : x
  2. Step 2: Convert to fraction form
    703,402.88/970,765.44 = 401,642.24/x
  3. Step 3: Cross multiply
    703,402.88x = 970,765.44 × 401,642.24
  4. Step 4: Simplify right side
    703,402.88x = 389,900,405,836.19
  5. Step 5: Solve for x
    x = 389,900,405,836.19/703,402.88
  6. Step 6: Final answer
    x = 554,305.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.