Home / 805,311.38-1,111,301.37-442,732.61

Finding the Fourth Proportional to 805,311.38, 1,111,301.37 and 442,732.61

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Solution

The fourth proportional to 805,311.38, 1,111,301.37 and 442,732.61 is: 610,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,311.38 : 1,111,301.37 = 442,732.61 : x
  2. Step 2: Convert to fraction form
    805,311.38/1,111,301.37 = 442,732.61/x
  3. Step 3: Cross multiply
    805,311.38x = 1,111,301.37 × 442,732.61
  4. Step 4: Simplify right side
    805,311.38x = 492,009,350,480.17
  5. Step 5: Solve for x
    x = 492,009,350,480.17/805,311.38
  6. Step 6: Final answer
    x = 610,955.42

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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.