Home / 718,239.50-991,173.48-395,942.48

Finding the Fourth Proportional to 718,239.50, 991,173.48 and 395,942.48

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Solution

The fourth proportional to 718,239.50, 991,173.48 and 395,942.48 is: 546,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,239.50 : 991,173.48 = 395,942.48 : x
  2. Step 2: Convert to fraction form
    718,239.50/991,173.48 = 395,942.48/x
  3. Step 3: Cross multiply
    718,239.50x = 991,173.48 × 395,942.48
  4. Step 4: Simplify right side
    718,239.50x = 392,447,685,781.43
  5. Step 5: Solve for x
    x = 392,447,685,781.43/718,239.50
  6. Step 6: Final answer
    x = 546,402.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.