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Finding the Fourth Proportional to 504,065.44, 695,604.90 and 289,239.31

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Solution

The fourth proportional to 504,065.44, 695,604.90 and 289,239.31 is: 399,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,065.44 : 695,604.90 = 289,239.31 : x
  2. Step 2: Convert to fraction form
    504,065.44/695,604.90 = 289,239.31/x
  3. Step 3: Cross multiply
    504,065.44x = 695,604.90 × 289,239.31
  4. Step 4: Simplify right side
    504,065.44x = 201,196,281,308.62
  5. Step 5: Solve for x
    x = 201,196,281,308.62/504,065.44
  6. Step 6: Final answer
    x = 399,147.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.