Home / 779,879.25-1,169,818.88-281,243.25

Finding the Fourth Proportional to 779,879.25, 1,169,818.88 and 281,243.25

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Solution

The fourth proportional to 779,879.25, 1,169,818.88 and 281,243.25 is: 421,864.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,879.25 : 1,169,818.88 = 281,243.25 : x
  2. Step 2: Convert to fraction form
    779,879.25/1,169,818.88 = 281,243.25/x
  3. Step 3: Cross multiply
    779,879.25x = 1,169,818.88 × 281,243.25
  4. Step 4: Simplify right side
    779,879.25x = 329,003,662,316.34
  5. Step 5: Solve for x
    x = 329,003,662,316.34/779,879.25
  6. Step 6: Final answer
    x = 421,864.88

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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.