Home / 769,645.52-1,062,059.85-442,905.66

Finding the Fourth Proportional to 769,645.52, 1,062,059.85 and 442,905.66

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Solution

The fourth proportional to 769,645.52, 1,062,059.85 and 442,905.66 is: 611,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,645.52 : 1,062,059.85 = 442,905.66 : x
  2. Step 2: Convert to fraction form
    769,645.52/1,062,059.85 = 442,905.66/x
  3. Step 3: Cross multiply
    769,645.52x = 1,062,059.85 × 442,905.66
  4. Step 4: Simplify right side
    769,645.52x = 470,392,318,823.75
  5. Step 5: Solve for x
    x = 470,392,318,823.75/769,645.52
  6. Step 6: Final answer
    x = 611,180.48

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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.