Home / 2,715,015.40-4,071,486.30-821,127.40

Finding the Fourth Proportional to 2,715,015.40, 4,071,486.30 and 821,127.40

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Solution

The fourth proportional to 2,715,015.40, 4,071,486.30 and 821,127.40 is: 1,231,377.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715,015.40 : 4,071,486.30 = 821,127.40 : x
  2. Step 2: Convert to fraction form
    2,715,015.40/4,071,486.30 = 821,127.40/x
  3. Step 3: Cross multiply
    2,715,015.40x = 4,071,486.30 × 821,127.40
  4. Step 4: Simplify right side
    2,715,015.40x = 3,343,208,959,654.62
  5. Step 5: Solve for x
    x = 3,343,208,959,654.62/2,715,015.40
  6. Step 6: Final answer
    x = 1,231,377.53

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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.