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Finding the Fourth Proportional to 703,130.54, 970,379.82 and 397,263.14

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Solution

The fourth proportional to 703,130.54, 970,379.82 and 397,263.14 is: 548,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,130.54 : 970,379.82 = 397,263.14 : x
  2. Step 2: Convert to fraction form
    703,130.54/970,379.82 = 397,263.14/x
  3. Step 3: Cross multiply
    703,130.54x = 970,379.82 × 397,263.14
  4. Step 4: Simplify right side
    703,130.54x = 385,496,134,285.84
  5. Step 5: Solve for x
    x = 385,496,134,285.84/703,130.54
  6. Step 6: Final answer
    x = 548,256.85

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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.