Home / 1,210,016.40-1,815,024.60-1,189,021.20

Finding the Fourth Proportional to 1,210,016.40, 1,815,024.60 and 1,189,021.20

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Solution

The fourth proportional to 1,210,016.40, 1,815,024.60 and 1,189,021.20 is: 1,783,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,016.40 : 1,815,024.60 = 1,189,021.20 : x
  2. Step 2: Convert to fraction form
    1,210,016.40/1,815,024.60 = 1,189,021.20/x
  3. Step 3: Cross multiply
    1,210,016.40x = 1,815,024.60 × 1,189,021.20
  4. Step 4: Simplify right side
    1,210,016.40x = 2,158,102,727,921.52
  5. Step 5: Solve for x
    x = 2,158,102,727,921.52/1,210,016.40
  6. Step 6: Final answer
    x = 1,783,531.80

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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.