Home / 820,171.70-1,230,257.55-503,602.10

Finding the Fourth Proportional to 820,171.70, 1,230,257.55 and 503,602.10

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Solution

The fourth proportional to 820,171.70, 1,230,257.55 and 503,602.10 is: 755,403.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,171.70 : 1,230,257.55 = 503,602.10 : x
  2. Step 2: Convert to fraction form
    820,171.70/1,230,257.55 = 503,602.10/x
  3. Step 3: Cross multiply
    820,171.70x = 1,230,257.55 × 503,602.10
  4. Step 4: Simplify right side
    820,171.70x = 619,560,285,720.86
  5. Step 5: Solve for x
    x = 619,560,285,720.86/820,171.70
  6. Step 6: Final answer
    x = 755,403.15

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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.