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Finding the Fourth Proportional to 659,129.40, 988,989.48 and 303,953.04

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Solution

The fourth proportional to 659,129.40, 988,989.48 and 303,953.04 is: 456,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,129.40 : 988,989.48 = 303,953.04 : x
  2. Step 2: Convert to fraction form
    659,129.40/988,989.48 = 303,953.04/x
  3. Step 3: Cross multiply
    659,129.40x = 988,989.48 × 303,953.04
  4. Step 4: Simplify right side
    659,129.40x = 300,606,358,974.02
  5. Step 5: Solve for x
    x = 300,606,358,974.02/659,129.40
  6. Step 6: Final answer
    x = 456,065.77

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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.