Home / 805,318.62-1,111,311.38-442,739.86

Finding the Fourth Proportional to 805,318.62, 1,111,311.38 and 442,739.86

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Solution

The fourth proportional to 805,318.62, 1,111,311.38 and 442,739.86 is: 610,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,318.62 : 1,111,311.38 = 442,739.86 : x
  2. Step 2: Convert to fraction form
    805,318.62/1,111,311.38 = 442,739.86/x
  3. Step 3: Cross multiply
    805,318.62x = 1,111,311.38 × 442,739.86
  4. Step 4: Simplify right side
    805,318.62x = 492,021,844,797.61
  5. Step 5: Solve for x
    x = 492,021,844,797.61/805,318.62
  6. Step 6: Final answer
    x = 610,965.44

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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.