Home / 1,090,201.20-1,635,301.80-712,287.60

Finding the Fourth Proportional to 1,090,201.20, 1,635,301.80 and 712,287.60

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Solution

The fourth proportional to 1,090,201.20, 1,635,301.80 and 712,287.60 is: 1,068,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,201.20 : 1,635,301.80 = 712,287.60 : x
  2. Step 2: Convert to fraction form
    1,090,201.20/1,635,301.80 = 712,287.60/x
  3. Step 3: Cross multiply
    1,090,201.20x = 1,635,301.80 × 712,287.60
  4. Step 4: Simplify right side
    1,090,201.20x = 1,164,805,194,397.68
  5. Step 5: Solve for x
    x = 1,164,805,194,397.68/1,090,201.20
  6. Step 6: Final answer
    x = 1,068,431.40

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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.