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Finding the Fourth Proportional to 998,273.10, 1,495,076.85 and 978,228.30

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Solution

The fourth proportional to 998,273.10, 1,495,076.85 and 978,228.30 is: 1,465,056.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,273.10 : 1,495,076.85 = 978,228.30 : x
  2. Step 2: Convert to fraction form
    998,273.10/1,495,076.85 = 978,228.30/x
  3. Step 3: Cross multiply
    998,273.10x = 1,495,076.85 × 978,228.30
  4. Step 4: Simplify right side
    998,273.10x = 1,462,526,485,344.86
  5. Step 5: Solve for x
    x = 1,462,526,485,344.86/998,273.10
  6. Step 6: Final answer
    x = 1,465,056.49

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1.5x scale

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.