Home / 1,089,781.53-1,634,733.78-331,647.72

Finding the Fourth Proportional to 1,089,781.53, 1,634,733.78 and 331,647.72

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Solution

The fourth proportional to 1,089,781.53, 1,634,733.78 and 331,647.72 is: 497,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,781.53 : 1,634,733.78 = 331,647.72 : x
  2. Step 2: Convert to fraction form
    1,089,781.53/1,634,733.78 = 331,647.72/x
  3. Step 3: Cross multiply
    1,089,781.53x = 1,634,733.78 × 331,647.72
  4. Step 4: Simplify right side
    1,089,781.53x = 542,155,730,943.98
  5. Step 5: Solve for x
    x = 542,155,730,943.98/1,089,781.53
  6. Step 6: Final answer
    x = 497,490.29

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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.