Home / 727,173.60-1,090,395.36-423,665.88

Finding the Fourth Proportional to 727,173.60, 1,090,395.36 and 423,665.88

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Solution

The fourth proportional to 727,173.60, 1,090,395.36 and 423,665.88 is: 635,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,173.60 : 1,090,395.36 = 423,665.88 : x
  2. Step 2: Convert to fraction form
    727,173.60/1,090,395.36 = 423,665.88/x
  3. Step 3: Cross multiply
    727,173.60x = 1,090,395.36 × 423,665.88
  4. Step 4: Simplify right side
    727,173.60x = 461,963,309,742.32
  5. Step 5: Solve for x
    x = 461,963,309,742.32/727,173.60
  6. Step 6: Final answer
    x = 635,286.14

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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.