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Finding the Fourth Proportional to 659,405.44, 989,274.48 and 304,670.26

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Solution

The fourth proportional to 659,405.44, 989,274.48 and 304,670.26 is: 457,082.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,405.44 : 989,274.48 = 304,670.26 : x
  2. Step 2: Convert to fraction form
    659,405.44/989,274.48 = 304,670.26/x
  3. Step 3: Cross multiply
    659,405.44x = 989,274.48 × 304,670.26
  4. Step 4: Simplify right side
    659,405.44x = 301,402,513,032.97
  5. Step 5: Solve for x
    x = 301,402,513,032.97/659,405.44
  6. Step 6: Final answer
    x = 457,082.24

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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.