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Finding the Fourth Proportional to 700,997.56, 967,377.12 and 378,707.56

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Solution

The fourth proportional to 700,997.56, 967,377.12 and 378,707.56 is: 522,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,997.56 : 967,377.12 = 378,707.56 : x
  2. Step 2: Convert to fraction form
    700,997.56/967,377.12 = 378,707.56/x
  3. Step 3: Cross multiply
    700,997.56x = 967,377.12 × 378,707.56
  4. Step 4: Simplify right side
    700,997.56x = 366,353,028,715.03
  5. Step 5: Solve for x
    x = 366,353,028,715.03/700,997.56
  6. Step 6: Final answer
    x = 522,616.70

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1.5x scale

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.