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Finding the Fourth Proportional to 519,884.55, 779,820.63 and 164,901.65

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Solution

The fourth proportional to 519,884.55, 779,820.63 and 164,901.65 is: 247,350.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,884.55 : 779,820.63 = 164,901.65 : x
  2. Step 2: Convert to fraction form
    519,884.55/779,820.63 = 164,901.65/x
  3. Step 3: Cross multiply
    519,884.55x = 779,820.63 × 164,901.65
  4. Step 4: Simplify right side
    519,884.55x = 128,593,704,691.94
  5. Step 5: Solve for x
    x = 128,593,704,691.94/519,884.55
  6. Step 6: Final answer
    x = 247,350.50

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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.