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Finding the Fourth Proportional to 559,323.72, 771,839.37 and 317,601.14

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Solution

The fourth proportional to 559,323.72, 771,839.37 and 317,601.14 is: 438,274.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,323.72 : 771,839.37 = 317,601.14 : x
  2. Step 2: Convert to fraction form
    559,323.72/771,839.37 = 317,601.14/x
  3. Step 3: Cross multiply
    559,323.72x = 771,839.37 × 317,601.14
  4. Step 4: Simplify right side
    559,323.72x = 245,137,059,949.69
  5. Step 5: Solve for x
    x = 245,137,059,949.69/559,323.72
  6. Step 6: Final answer
    x = 438,274.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.