Home / 1,090,122.64-1,635,402.66-379,960

Finding the Fourth Proportional to 1,090,122.64, 1,635,402.66 and 379,960

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Solution

The fourth proportional to 1,090,122.64, 1,635,402.66 and 379,960 is: 570,016.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,122.64 : 1,635,402.66 = 379,960 : x
  2. Step 2: Convert to fraction form
    1,090,122.64/1,635,402.66 = 379,960/x
  3. Step 3: Cross multiply
    1,090,122.64x = 1,635,402.66 × 379,960
  4. Step 4: Simplify right side
    1,090,122.64x = 621,387,594,693.60
  5. Step 5: Solve for x
    x = 621,387,594,693.60/1,090,122.64
  6. Step 6: Final answer
    x = 570,016.23

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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.