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Finding the Fourth Proportional to 2,412,390, 3,620,243.88 and 836,454

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Solution

The fourth proportional to 2,412,390, 3,620,243.88 and 836,454 is: 1,255,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412,390 : 3,620,243.88 = 836,454 : x
  2. Step 2: Convert to fraction form
    2,412,390/3,620,243.88 = 836,454/x
  3. Step 3: Cross multiply
    2,412,390x = 3,620,243.88 × 836,454
  4. Step 4: Simplify right side
    2,412,390x = 3,028,167,474,401.52
  5. Step 5: Solve for x
    x = 3,028,167,474,401.52/2,412,390
  6. Step 6: Final answer
    x = 1,255,256.19

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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.