Home / 769,035.40-1,153,553.10-208,069.90

Finding the Fourth Proportional to 769,035.40, 1,153,553.10 and 208,069.90

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Solution

The fourth proportional to 769,035.40, 1,153,553.10 and 208,069.90 is: 312,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,035.40 : 1,153,553.10 = 208,069.90 : x
  2. Step 2: Convert to fraction form
    769,035.40/1,153,553.10 = 208,069.90/x
  3. Step 3: Cross multiply
    769,035.40x = 1,153,553.10 × 208,069.90
  4. Step 4: Simplify right side
    769,035.40x = 240,019,678,161.69
  5. Step 5: Solve for x
    x = 240,019,678,161.69/769,035.40
  6. Step 6: Final answer
    x = 312,104.85

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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.