Home / 1,089,531.40-1,634,588.70-972,016.60

Finding the Fourth Proportional to 1,089,531.40, 1,634,588.70 and 972,016.60

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Solution

The fourth proportional to 1,089,531.40, 1,634,588.70 and 972,016.60 is: 1,458,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,531.40 : 1,634,588.70 = 972,016.60 : x
  2. Step 2: Convert to fraction form
    1,089,531.40/1,634,588.70 = 972,016.60/x
  3. Step 3: Cross multiply
    1,089,531.40x = 1,634,588.70 × 972,016.60
  4. Step 4: Simplify right side
    1,089,531.40x = 1,588,847,350,572.42
  5. Step 5: Solve for x
    x = 1,588,847,350,572.42/1,089,531.40
  6. Step 6: Final answer
    x = 1,458,285.05

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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.