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Finding the Fourth Proportional to 700,998.56, 967,378.50 and 378,708.56

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Solution

The fourth proportional to 700,998.56, 967,378.50 and 378,708.56 is: 522,618.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,998.56 : 967,378.50 = 378,708.56 : x
  2. Step 2: Convert to fraction form
    700,998.56/967,378.50 = 378,708.56/x
  3. Step 3: Cross multiply
    700,998.56x = 967,378.50 × 378,708.56
  4. Step 4: Simplify right side
    700,998.56x = 366,354,518,709.96
  5. Step 5: Solve for x
    x = 366,354,518,709.96/700,998.56
  6. Step 6: Final answer
    x = 522,618.08

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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.