Home / 805,440.52-1,111,512.18-442,887.80

Finding the Fourth Proportional to 805,440.52, 1,111,512.18 and 442,887.80

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Solution

The fourth proportional to 805,440.52, 1,111,512.18 and 442,887.80 is: 611,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,440.52 : 1,111,512.18 = 442,887.80 : x
  2. Step 2: Convert to fraction form
    805,440.52/1,111,512.18 = 442,887.80/x
  3. Step 3: Cross multiply
    805,440.52x = 1,111,512.18 × 442,887.80
  4. Step 4: Simplify right side
    805,440.52x = 492,275,184,073.40
  5. Step 5: Solve for x
    x = 492,275,184,073.40/805,440.52
  6. Step 6: Final answer
    x = 611,187.51

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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.