Home / 860,227.68-1,187,046.96-478,231.20

Finding the Fourth Proportional to 860,227.68, 1,187,046.96 and 478,231.20

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Solution

The fourth proportional to 860,227.68, 1,187,046.96 and 478,231.20 is: 659,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,227.68 : 1,187,046.96 = 478,231.20 : x
  2. Step 2: Convert to fraction form
    860,227.68/1,187,046.96 = 478,231.20/x
  3. Step 3: Cross multiply
    860,227.68x = 1,187,046.96 × 478,231.20
  4. Step 4: Simplify right side
    860,227.68x = 567,682,892,137.15
  5. Step 5: Solve for x
    x = 567,682,892,137.15/860,227.68
  6. Step 6: Final answer
    x = 659,921.68

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Half scale
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Double scale
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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.