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Finding the Fourth Proportional to 656,906.40, 985,505.40 and 301,834.80

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Solution

The fourth proportional to 656,906.40, 985,505.40 and 301,834.80 is: 452,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,906.40 : 985,505.40 = 301,834.80 : x
  2. Step 2: Convert to fraction form
    656,906.40/985,505.40 = 301,834.80/x
  3. Step 3: Cross multiply
    656,906.40x = 985,505.40 × 301,834.80
  4. Step 4: Simplify right side
    656,906.40x = 297,459,825,307.92
  5. Step 5: Solve for x
    x = 297,459,825,307.92/656,906.40
  6. Step 6: Final answer
    x = 452,819.19

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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.