Home / 820,029.40-1,230,965.70-633,866.20

Finding the Fourth Proportional to 820,029.40, 1,230,965.70 and 633,866.20

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Solution

The fourth proportional to 820,029.40, 1,230,965.70 and 633,866.20 is: 951,511.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,029.40 : 1,230,965.70 = 633,866.20 : x
  2. Step 2: Convert to fraction form
    820,029.40/1,230,965.70 = 633,866.20/x
  3. Step 3: Cross multiply
    820,029.40x = 1,230,965.70 × 633,866.20
  4. Step 4: Simplify right side
    820,029.40x = 780,267,550,589.34
  5. Step 5: Solve for x
    x = 780,267,550,589.34/820,029.40
  6. Step 6: Final answer
    x = 951,511.68

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1.5x scale

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.