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Finding the Fourth Proportional to 478,499.48, 717,072.15 and 265,361.14

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Solution

The fourth proportional to 478,499.48, 717,072.15 and 265,361.14 is: 397,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,499.48 : 717,072.15 = 265,361.14 : x
  2. Step 2: Convert to fraction form
    478,499.48/717,072.15 = 265,361.14/x
  3. Step 3: Cross multiply
    478,499.48x = 717,072.15 × 265,361.14
  4. Step 4: Simplify right side
    478,499.48x = 190,283,083,186.25
  5. Step 5: Solve for x
    x = 190,283,083,186.25/478,499.48
  6. Step 6: Final answer
    x = 397,666.23

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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.