Home / 1,089,633.20-1,632,505.80-527,428.40

Finding the Fourth Proportional to 1,089,633.20, 1,632,505.80 and 527,428.40

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Solution

The fourth proportional to 1,089,633.20, 1,632,505.80 and 527,428.40 is: 790,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,633.20 : 1,632,505.80 = 527,428.40 : x
  2. Step 2: Convert to fraction form
    1,089,633.20/1,632,505.80 = 527,428.40/x
  3. Step 3: Cross multiply
    1,089,633.20x = 1,632,505.80 × 527,428.40
  4. Step 4: Simplify right side
    1,089,633.20x = 861,029,922,084.72
  5. Step 5: Solve for x
    x = 861,029,922,084.72/1,089,633.20
  6. Step 6: Final answer
    x = 790,201.62

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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.