Home / 1,485,005.40-2,227,508.10-1,331,040.60

Finding the Fourth Proportional to 1,485,005.40, 2,227,508.10 and 1,331,040.60

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Solution

The fourth proportional to 1,485,005.40, 2,227,508.10 and 1,331,040.60 is: 1,996,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,005.40 : 2,227,508.10 = 1,331,040.60 : x
  2. Step 2: Convert to fraction form
    1,485,005.40/2,227,508.10 = 1,331,040.60/x
  3. Step 3: Cross multiply
    1,485,005.40x = 2,227,508.10 × 1,331,040.60
  4. Step 4: Simplify right side
    1,485,005.40x = 2,964,903,717,928.86
  5. Step 5: Solve for x
    x = 2,964,903,717,928.86/1,485,005.40
  6. Step 6: Final answer
    x = 1,996,560.90

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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.