Home / 725,780.11-1,089,000.64-370,611.31

Finding the Fourth Proportional to 725,780.11, 1,089,000.64 and 370,611.31

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Solution

The fourth proportional to 725,780.11, 1,089,000.64 and 370,611.31 is: 556,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,780.11 : 1,089,000.64 = 370,611.31 : x
  2. Step 2: Convert to fraction form
    725,780.11/1,089,000.64 = 370,611.31/x
  3. Step 3: Cross multiply
    725,780.11x = 1,089,000.64 × 370,611.31
  4. Step 4: Simplify right side
    725,780.11x = 403,595,951,522.00
  5. Step 5: Solve for x
    x = 403,595,951,522.00/725,780.11
  6. Step 6: Final answer
    x = 556,085.72

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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.