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Finding the Fourth Proportional to 703,607.37, 971,082.39 and 445,508.31

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Solution

The fourth proportional to 703,607.37, 971,082.39 and 445,508.31 is: 614,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,607.37 : 971,082.39 = 445,508.31 : x
  2. Step 2: Convert to fraction form
    703,607.37/971,082.39 = 445,508.31/x
  3. Step 3: Cross multiply
    703,607.37x = 971,082.39 × 445,508.31
  4. Step 4: Simplify right side
    703,607.37x = 432,625,274,439.66
  5. Step 5: Solve for x
    x = 432,625,274,439.66/703,607.37
  6. Step 6: Final answer
    x = 614,867.46

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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.