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Finding the Fourth Proportional to 404,927.78, 607,393.83 and 265,568.90

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Solution

The fourth proportional to 404,927.78, 607,393.83 and 265,568.90 is: 398,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,927.78 : 607,393.83 = 265,568.90 : x
  2. Step 2: Convert to fraction form
    404,927.78/607,393.83 = 265,568.90/x
  3. Step 3: Cross multiply
    404,927.78x = 607,393.83 × 265,568.90
  4. Step 4: Simplify right side
    404,927.78x = 161,304,911,299.89
  5. Step 5: Solve for x
    x = 161,304,911,299.89/404,927.78
  6. Step 6: Final answer
    x = 398,354.77

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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.