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Finding the Fourth Proportional to 661,670.48, 992,604.14 and 306,720.38

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Solution

The fourth proportional to 661,670.48, 992,604.14 and 306,720.38 is: 460,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,670.48 : 992,604.14 = 306,720.38 : x
  2. Step 2: Convert to fraction form
    661,670.48/992,604.14 = 306,720.38/x
  3. Step 3: Cross multiply
    661,670.48x = 992,604.14 × 306,720.38
  4. Step 4: Simplify right side
    661,670.48x = 304,451,919,010.37
  5. Step 5: Solve for x
    x = 304,451,919,010.37/661,670.48
  6. Step 6: Final answer
    x = 460,126.19

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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.