Home / 920,645.60-1,378,635.60-734,021.60

Finding the Fourth Proportional to 920,645.60, 1,378,635.60 and 734,021.60

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Solution

The fourth proportional to 920,645.60, 1,378,635.60 and 734,021.60 is: 1,099,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,645.60 : 1,378,635.60 = 734,021.60 : x
  2. Step 2: Convert to fraction form
    920,645.60/1,378,635.60 = 734,021.60/x
  3. Step 3: Cross multiply
    920,645.60x = 1,378,635.60 × 734,021.60
  4. Step 4: Simplify right side
    920,645.60x = 1,011,948,308,928.96
  5. Step 5: Solve for x
    x = 1,011,948,308,928.96/920,645.60
  6. Step 6: Final answer
    x = 1,099,172.48

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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.