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Finding the Fourth Proportional to 697,342.70, 962,357.02 and 387,250.50

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Solution

The fourth proportional to 697,342.70, 962,357.02 and 387,250.50 is: 534,419.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,342.70 : 962,357.02 = 387,250.50 : x
  2. Step 2: Convert to fraction form
    697,342.70/962,357.02 = 387,250.50/x
  3. Step 3: Cross multiply
    697,342.70x = 962,357.02 × 387,250.50
  4. Step 4: Simplify right side
    697,342.70x = 372,673,237,375.82
  5. Step 5: Solve for x
    x = 372,673,237,375.82/697,342.70
  6. Step 6: Final answer
    x = 534,419.07

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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.