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Finding the Fourth Proportional to 515,094.40, 772,641.60 and 494,099.20

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Solution

The fourth proportional to 515,094.40, 772,641.60 and 494,099.20 is: 741,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,094.40 : 772,641.60 = 494,099.20 : x
  2. Step 2: Convert to fraction form
    515,094.40/772,641.60 = 494,099.20/x
  3. Step 3: Cross multiply
    515,094.40x = 772,641.60 × 494,099.20
  4. Step 4: Simplify right side
    515,094.40x = 381,761,596,446.72
  5. Step 5: Solve for x
    x = 381,761,596,446.72/515,094.40
  6. Step 6: Final answer
    x = 741,148.80

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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.