Home / 1,147,659.40-1,722,145.20-438,196.60

Finding the Fourth Proportional to 1,147,659.40, 1,722,145.20 and 438,196.60

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Solution

The fourth proportional to 1,147,659.40, 1,722,145.20 and 438,196.60 is: 657,545.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,659.40 : 1,722,145.20 = 438,196.60 : x
  2. Step 2: Convert to fraction form
    1,147,659.40/1,722,145.20 = 438,196.60/x
  3. Step 3: Cross multiply
    1,147,659.40x = 1,722,145.20 × 438,196.60
  4. Step 4: Simplify right side
    1,147,659.40x = 754,638,171,346.32
  5. Step 5: Solve for x
    x = 754,638,171,346.32/1,147,659.40
  6. Step 6: Final answer
    x = 657,545.41

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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.