Home / 725,781.11-1,089,002.14-370,612.31

Finding the Fourth Proportional to 725,781.11, 1,089,002.14 and 370,612.31

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Solution

The fourth proportional to 725,781.11, 1,089,002.14 and 370,612.31 is: 556,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,781.11 : 1,089,002.14 = 370,612.31 : x
  2. Step 2: Convert to fraction form
    725,781.11/1,089,002.14 = 370,612.31/x
  3. Step 3: Cross multiply
    725,781.11x = 1,089,002.14 × 370,612.31
  4. Step 4: Simplify right side
    725,781.11x = 403,597,598,700.34
  5. Step 5: Solve for x
    x = 403,597,598,700.34/725,781.11
  6. Step 6: Final answer
    x = 556,087.22

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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.