Home / 718,250.09-991,191.53-395,971.54

Finding the Fourth Proportional to 718,250.09, 991,191.53 and 395,971.54

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Solution

The fourth proportional to 718,250.09, 991,191.53 and 395,971.54 is: 546,444.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,250.09 : 991,191.53 = 395,971.54 : x
  2. Step 2: Convert to fraction form
    718,250.09/991,191.53 = 395,971.54/x
  3. Step 3: Cross multiply
    718,250.09x = 991,191.53 × 395,971.54
  4. Step 4: Simplify right side
    718,250.09x = 392,483,635,081.01
  5. Step 5: Solve for x
    x = 392,483,635,081.01/718,250.09
  6. Step 6: Final answer
    x = 546,444.26

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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.