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Finding the Fourth Proportional to 618,028.20, 926,897.10 and 348,273.90

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Solution

The fourth proportional to 618,028.20, 926,897.10 and 348,273.90 is: 522,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,028.20 : 926,897.10 = 348,273.90 : x
  2. Step 2: Convert to fraction form
    618,028.20/926,897.10 = 348,273.90/x
  3. Step 3: Cross multiply
    618,028.20x = 926,897.10 × 348,273.90
  4. Step 4: Simplify right side
    618,028.20x = 322,814,067,915.69
  5. Step 5: Solve for x
    x = 322,814,067,915.69/618,028.20
  6. Step 6: Final answer
    x = 522,329.03

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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.