Home / 725,990.70-1,089,207.58-371,253.90

Finding the Fourth Proportional to 725,990.70, 1,089,207.58 and 371,253.90

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Solution

The fourth proportional to 725,990.70, 1,089,207.58 and 371,253.90 is: 556,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,990.70 : 1,089,207.58 = 371,253.90 : x
  2. Step 2: Convert to fraction form
    725,990.70/1,089,207.58 = 371,253.90/x
  3. Step 3: Cross multiply
    725,990.70x = 1,089,207.58 × 371,253.90
  4. Step 4: Simplify right side
    725,990.70x = 404,372,561,984.56
  5. Step 5: Solve for x
    x = 404,372,561,984.56/725,990.70
  6. Step 6: Final answer
    x = 556,994.14

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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.