Home / 805,331.69-1,111,358.44-442,761.72

Finding the Fourth Proportional to 805,331.69, 1,111,358.44 and 442,761.72

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Solution

The fourth proportional to 805,331.69, 1,111,358.44 and 442,761.72 is: 611,011.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,331.69 : 1,111,358.44 = 442,761.72 : x
  2. Step 2: Convert to fraction form
    805,331.69/1,111,358.44 = 442,761.72/x
  3. Step 3: Cross multiply
    805,331.69x = 1,111,358.44 × 442,761.72
  4. Step 4: Simplify right side
    805,331.69x = 492,066,970,816.78
  5. Step 5: Solve for x
    x = 492,066,970,816.78/805,331.69
  6. Step 6: Final answer
    x = 611,011.56

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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.