Home / 699,118.71-1,047,410.19-320,355.83

Finding the Fourth Proportional to 699,118.71, 1,047,410.19 and 320,355.83

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Solution

The fourth proportional to 699,118.71, 1,047,410.19 and 320,355.83 is: 479,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,118.71 : 1,047,410.19 = 320,355.83 : x
  2. Step 2: Convert to fraction form
    699,118.71/1,047,410.19 = 320,355.83/x
  3. Step 3: Cross multiply
    699,118.71x = 1,047,410.19 × 320,355.83
  4. Step 4: Simplify right side
    699,118.71x = 335,543,955,530.86
  5. Step 5: Solve for x
    x = 335,543,955,530.86/699,118.71
  6. Step 6: Final answer
    x = 479,952.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.