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Finding the Fourth Proportional to 659,130.40, 988,990.98 and 303,954.04

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Solution

The fourth proportional to 659,130.40, 988,990.98 and 303,954.04 is: 456,067.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,130.40 : 988,990.98 = 303,954.04 : x
  2. Step 2: Convert to fraction form
    659,130.40/988,990.98 = 303,954.04/x
  3. Step 3: Cross multiply
    659,130.40x = 988,990.98 × 303,954.04
  4. Step 4: Simplify right side
    659,130.40x = 300,607,803,894.56
  5. Step 5: Solve for x
    x = 300,607,803,894.56/659,130.40
  6. Step 6: Final answer
    x = 456,067.27

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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.