Home / 782,327.43-1,079,426.70-442,795.68

Finding the Fourth Proportional to 782,327.43, 1,079,426.70 and 442,795.68

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Solution

The fourth proportional to 782,327.43, 1,079,426.70 and 442,795.68 is: 610,953.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,327.43 : 1,079,426.70 = 442,795.68 : x
  2. Step 2: Convert to fraction form
    782,327.43/1,079,426.70 = 442,795.68/x
  3. Step 3: Cross multiply
    782,327.43x = 1,079,426.70 × 442,795.68
  4. Step 4: Simplify right side
    782,327.43x = 477,965,479,636.66
  5. Step 5: Solve for x
    x = 477,965,479,636.66/782,327.43
  6. Step 6: Final answer
    x = 610,953.24

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1.5x scale

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.