Home / 779,979.60-1,169,969.40-275,110.65

Finding the Fourth Proportional to 779,979.60, 1,169,969.40 and 275,110.65

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Solution

The fourth proportional to 779,979.60, 1,169,969.40 and 275,110.65 is: 412,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,979.60 : 1,169,969.40 = 275,110.65 : x
  2. Step 2: Convert to fraction form
    779,979.60/1,169,969.40 = 275,110.65/x
  3. Step 3: Cross multiply
    779,979.60x = 1,169,969.40 × 275,110.65
  4. Step 4: Simplify right side
    779,979.60x = 321,871,042,114.11
  5. Step 5: Solve for x
    x = 321,871,042,114.11/779,979.60
  6. Step 6: Final answer
    x = 412,665.98

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Double scale
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Similar ratio
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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.