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Finding the Fourth Proportional to 703,309.11, 970,565.40 and 381,027.39

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Solution

The fourth proportional to 703,309.11, 970,565.40 and 381,027.39 is: 525,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,309.11 : 970,565.40 = 381,027.39 : x
  2. Step 2: Convert to fraction form
    703,309.11/970,565.40 = 381,027.39/x
  3. Step 3: Cross multiply
    703,309.11x = 970,565.40 × 381,027.39
  4. Step 4: Simplify right side
    703,309.11x = 369,812,001,186.31
  5. Step 5: Solve for x
    x = 369,812,001,186.31/703,309.11
  6. Step 6: Final answer
    x = 525,817.16

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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.