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Finding the Fourth Proportional to 559,945.20, 839,917.80 and 559,945.20

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Solution

The fourth proportional to 559,945.20, 839,917.80 and 559,945.20 is: 839,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,945.20 : 839,917.80 = 559,945.20 : x
  2. Step 2: Convert to fraction form
    559,945.20/839,917.80 = 559,945.20/x
  3. Step 3: Cross multiply
    559,945.20x = 839,917.80 × 559,945.20
  4. Step 4: Simplify right side
    559,945.20x = 470,307,940,504.56
  5. Step 5: Solve for x
    x = 470,307,940,504.56/559,945.20
  6. Step 6: Final answer
    x = 839,917.80

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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.