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Finding the Fourth Proportional to 519,937.35, 779,933.70 and 164,979.15

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Solution

The fourth proportional to 519,937.35, 779,933.70 and 164,979.15 is: 247,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,937.35 : 779,933.70 = 164,979.15 : x
  2. Step 2: Convert to fraction form
    519,937.35/779,933.70 = 164,979.15/x
  3. Step 3: Cross multiply
    519,937.35x = 779,933.70 × 164,979.15
  4. Step 4: Simplify right side
    519,937.35x = 128,672,798,882.36
  5. Step 5: Solve for x
    x = 128,672,798,882.36/519,937.35
  6. Step 6: Final answer
    x = 247,477.51

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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.