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Finding the Fourth Proportional to 618,035.46, 926,907.75 and 348,281.22

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Solution

The fourth proportional to 618,035.46, 926,907.75 and 348,281.22 is: 522,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,035.46 : 926,907.75 = 348,281.22 : x
  2. Step 2: Convert to fraction form
    618,035.46/926,907.75 = 348,281.22/x
  3. Step 3: Cross multiply
    618,035.46x = 926,907.75 × 348,281.22
  4. Step 4: Simplify right side
    618,035.46x = 322,824,561,997.46
  5. Step 5: Solve for x
    x = 322,824,561,997.46/618,035.46
  6. Step 6: Final answer
    x = 522,339.87

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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.