Home / 764,111.44-1,146,101.10-258,661.63

Finding the Fourth Proportional to 764,111.44, 1,146,101.10 and 258,661.63

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Solution

The fourth proportional to 764,111.44, 1,146,101.10 and 258,661.63 is: 387,970.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,111.44 : 1,146,101.10 = 258,661.63 : x
  2. Step 2: Convert to fraction form
    764,111.44/1,146,101.10 = 258,661.63/x
  3. Step 3: Cross multiply
    764,111.44x = 1,146,101.10 × 258,661.63
  4. Step 4: Simplify right side
    764,111.44x = 296,452,378,670.79
  5. Step 5: Solve for x
    x = 296,452,378,670.79/764,111.44
  6. Step 6: Final answer
    x = 387,970.08

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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.