Home / 821,400.44-1,133,508.74-453,871.73

Finding the Fourth Proportional to 821,400.44, 1,133,508.74 and 453,871.73

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Solution

The fourth proportional to 821,400.44, 1,133,508.74 and 453,871.73 is: 626,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,400.44 : 1,133,508.74 = 453,871.73 : x
  2. Step 2: Convert to fraction form
    821,400.44/1,133,508.74 = 453,871.73/x
  3. Step 3: Cross multiply
    821,400.44x = 1,133,508.74 × 453,871.73
  4. Step 4: Simplify right side
    821,400.44x = 514,467,573,358.33
  5. Step 5: Solve for x
    x = 514,467,573,358.33/821,400.44
  6. Step 6: Final answer
    x = 626,329.80

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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.