Home / 782,370.24-1,079,664.48-442,835.52

Finding the Fourth Proportional to 782,370.24, 1,079,664.48 and 442,835.52

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Solution

The fourth proportional to 782,370.24, 1,079,664.48 and 442,835.52 is: 611,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,370.24 : 1,079,664.48 = 442,835.52 : x
  2. Step 2: Convert to fraction form
    782,370.24/1,079,664.48 = 442,835.52/x
  3. Step 3: Cross multiply
    782,370.24x = 1,079,664.48 × 442,835.52
  4. Step 4: Simplify right side
    782,370.24x = 478,113,781,426.33
  5. Step 5: Solve for x
    x = 478,113,781,426.33/782,370.24
  6. Step 6: Final answer
    x = 611,109.37

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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.