Home / 764,279.48-1,146,421.98-231,805.12

Finding the Fourth Proportional to 764,279.48, 1,146,421.98 and 231,805.12

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Solution

The fourth proportional to 764,279.48, 1,146,421.98 and 231,805.12 is: 347,708.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,279.48 : 1,146,421.98 = 231,805.12 : x
  2. Step 2: Convert to fraction form
    764,279.48/1,146,421.98 = 231,805.12/x
  3. Step 3: Cross multiply
    764,279.48x = 1,146,421.98 × 231,805.12
  4. Step 4: Simplify right side
    764,279.48x = 265,746,484,644.54
  5. Step 5: Solve for x
    x = 265,746,484,644.54/764,279.48
  6. Step 6: Final answer
    x = 347,708.52

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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.