Home / 900,028.62-1,242,039.60-492,168.06

Finding the Fourth Proportional to 900,028.62, 1,242,039.60 and 492,168.06

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Solution

The fourth proportional to 900,028.62, 1,242,039.60 and 492,168.06 is: 679,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,028.62 : 1,242,039.60 = 492,168.06 : x
  2. Step 2: Convert to fraction form
    900,028.62/1,242,039.60 = 492,168.06/x
  3. Step 3: Cross multiply
    900,028.62x = 1,242,039.60 × 492,168.06
  4. Step 4: Simplify right side
    900,028.62x = 611,292,220,375.18
  5. Step 5: Solve for x
    x = 611,292,220,375.18/900,028.62
  6. Step 6: Final answer
    x = 679,191.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.