Home / 821,642.46-1,232,815.05-394,973.34

Finding the Fourth Proportional to 821,642.46, 1,232,815.05 and 394,973.34

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Solution

The fourth proportional to 821,642.46, 1,232,815.05 and 394,973.34 is: 592,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,642.46 : 1,232,815.05 = 394,973.34 : x
  2. Step 2: Convert to fraction form
    821,642.46/1,232,815.05 = 394,973.34/x
  3. Step 3: Cross multiply
    821,642.46x = 1,232,815.05 × 394,973.34
  4. Step 4: Simplify right side
    821,642.46x = 486,929,077,900.77
  5. Step 5: Solve for x
    x = 486,929,077,900.77/821,642.46
  6. Step 6: Final answer
    x = 592,628.91

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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.