Home / 785,998.20-1,180,163.70-550,385.40

Finding the Fourth Proportional to 785,998.20, 1,180,163.70 and 550,385.40

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Solution

The fourth proportional to 785,998.20, 1,180,163.70 and 550,385.40 is: 826,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,998.20 : 1,180,163.70 = 550,385.40 : x
  2. Step 2: Convert to fraction form
    785,998.20/1,180,163.70 = 550,385.40/x
  3. Step 3: Cross multiply
    785,998.20x = 1,180,163.70 × 550,385.40
  4. Step 4: Simplify right side
    785,998.20x = 649,544,870,089.98
  5. Step 5: Solve for x
    x = 649,544,870,089.98/785,998.20
  6. Step 6: Final answer
    x = 826,394.86

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Half scale
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Double scale
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Similar ratio
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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.