Home / 821,819.81-1,134,223.89-472,952.81

Finding the Fourth Proportional to 821,819.81, 1,134,223.89 and 472,952.81

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Solution

The fourth proportional to 821,819.81, 1,134,223.89 and 472,952.81 is: 652,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,819.81 : 1,134,223.89 = 472,952.81 : x
  2. Step 2: Convert to fraction form
    821,819.81/1,134,223.89 = 472,952.81/x
  3. Step 3: Cross multiply
    821,819.81x = 1,134,223.89 × 472,952.81
  4. Step 4: Simplify right side
    821,819.81x = 536,434,375,944.63
  5. Step 5: Solve for x
    x = 536,434,375,944.63/821,819.81
  6. Step 6: Final answer
    x = 652,739.65

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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.