Home / 814,406.16-1,221,018.60-547,504.56

Finding the Fourth Proportional to 814,406.16, 1,221,018.60 and 547,504.56

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Solution

The fourth proportional to 814,406.16, 1,221,018.60 and 547,504.56 is: 820,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,406.16 : 1,221,018.60 = 547,504.56 : x
  2. Step 2: Convert to fraction form
    814,406.16/1,221,018.60 = 547,504.56/x
  3. Step 3: Cross multiply
    814,406.16x = 1,221,018.60 × 547,504.56
  4. Step 4: Simplify right side
    814,406.16x = 668,513,251,344.82
  5. Step 5: Solve for x
    x = 668,513,251,344.82/814,406.16
  6. Step 6: Final answer
    x = 820,859.77

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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.