Home / 2,715,505.40-4,072,221.30-821,617.40

Finding the Fourth Proportional to 2,715,505.40, 4,072,221.30 and 821,617.40

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Solution

The fourth proportional to 2,715,505.40, 4,072,221.30 and 821,617.40 is: 1,232,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715,505.40 : 4,072,221.30 = 821,617.40 : x
  2. Step 2: Convert to fraction form
    2,715,505.40/4,072,221.30 = 821,617.40/x
  3. Step 3: Cross multiply
    2,715,505.40x = 4,072,221.30 × 821,617.40
  4. Step 4: Simplify right side
    2,715,505.40x = 3,345,807,876,730.62
  5. Step 5: Solve for x
    x = 3,345,807,876,730.62/2,715,505.40
  6. Step 6: Final answer
    x = 1,232,112.40

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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.