Home / 779,738.76-1,169,753.96-247,116.78

Finding the Fourth Proportional to 779,738.76, 1,169,753.96 and 247,116.78

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Solution

The fourth proportional to 779,738.76, 1,169,753.96 and 247,116.78 is: 370,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,738.76 : 1,169,753.96 = 247,116.78 : x
  2. Step 2: Convert to fraction form
    779,738.76/1,169,753.96 = 247,116.78/x
  3. Step 3: Cross multiply
    779,738.76x = 1,169,753.96 × 247,116.78
  4. Step 4: Simplify right side
    779,738.76x = 289,065,831,987.45
  5. Step 5: Solve for x
    x = 289,065,831,987.45/779,738.76
  6. Step 6: Final answer
    x = 370,721.38

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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.