Home / 1,090,302.40-1,635,453.60-665,149.60

Finding the Fourth Proportional to 1,090,302.40, 1,635,453.60 and 665,149.60

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Solution

The fourth proportional to 1,090,302.40, 1,635,453.60 and 665,149.60 is: 997,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,302.40 : 1,635,453.60 = 665,149.60 : x
  2. Step 2: Convert to fraction form
    1,090,302.40/1,635,453.60 = 665,149.60/x
  3. Step 3: Cross multiply
    1,090,302.40x = 1,635,453.60 × 665,149.60
  4. Step 4: Simplify right side
    1,090,302.40x = 1,087,821,307,858.56
  5. Step 5: Solve for x
    x = 1,087,821,307,858.56/1,090,302.40
  6. Step 6: Final answer
    x = 997,724.40

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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.