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Finding the Fourth Proportional to 659,530.65, 989,313.00 and 179,762.38

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Solution

The fourth proportional to 659,530.65, 989,313.00 and 179,762.38 is: 269,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,530.65 : 989,313.00 = 179,762.38 : x
  2. Step 2: Convert to fraction form
    659,530.65/989,313.00 = 179,762.38/x
  3. Step 3: Cross multiply
    659,530.65x = 989,313.00 × 179,762.38
  4. Step 4: Simplify right side
    659,530.65x = 177,841,261,018.64
  5. Step 5: Solve for x
    x = 177,841,261,018.64/659,530.65
  6. Step 6: Final answer
    x = 269,648.21

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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.