Home / 814,123.37-1,221,296.16-281,501.39

Finding the Fourth Proportional to 814,123.37, 1,221,296.16 and 281,501.39

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Solution

The fourth proportional to 814,123.37, 1,221,296.16 and 281,501.39 is: 422,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,123.37 : 1,221,296.16 = 281,501.39 : x
  2. Step 2: Convert to fraction form
    814,123.37/1,221,296.16 = 281,501.39/x
  3. Step 3: Cross multiply
    814,123.37x = 1,221,296.16 × 281,501.39
  4. Step 4: Simplify right side
    814,123.37x = 343,796,566,641.66
  5. Step 5: Solve for x
    x = 343,796,566,641.66/814,123.37
  6. Step 6: Final answer
    x = 422,290.50

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Double scale
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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.