Home / 1,108,129.60-1,659,861.60-921,505.60

Finding the Fourth Proportional to 1,108,129.60, 1,659,861.60 and 921,505.60

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Solution

The fourth proportional to 1,108,129.60, 1,659,861.60 and 921,505.60 is: 1,380,318.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,129.60 : 1,659,861.60 = 921,505.60 : x
  2. Step 2: Convert to fraction form
    1,108,129.60/1,659,861.60 = 921,505.60/x
  3. Step 3: Cross multiply
    1,108,129.60x = 1,659,861.60 × 921,505.60
  4. Step 4: Simplify right side
    1,108,129.60x = 1,529,571,759,624.96
  5. Step 5: Solve for x
    x = 1,529,571,759,624.96/1,108,129.60
  6. Step 6: Final answer
    x = 1,380,318.48

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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.