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Finding the Fourth Proportional to 478,817.58, 718,505.80 and 265,764.29

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Solution

The fourth proportional to 478,817.58, 718,505.80 and 265,764.29 is: 398,801.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,817.58 : 718,505.80 = 265,764.29 : x
  2. Step 2: Convert to fraction form
    478,817.58/718,505.80 = 265,764.29/x
  3. Step 3: Cross multiply
    478,817.58x = 718,505.80 × 265,764.29
  4. Step 4: Simplify right side
    478,817.58x = 190,953,183,797.88
  5. Step 5: Solve for x
    x = 190,953,183,797.88/478,817.58
  6. Step 6: Final answer
    x = 398,801.53

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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.