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Finding the Fourth Proportional to 519,710.74, 779,593.61 and 164,752.45

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Solution

The fourth proportional to 519,710.74, 779,593.61 and 164,752.45 is: 247,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,710.74 : 779,593.61 = 164,752.45 : x
  2. Step 2: Convert to fraction form
    519,710.74/779,593.61 = 164,752.45/x
  3. Step 3: Cross multiply
    519,710.74x = 779,593.61 × 164,752.45
  4. Step 4: Simplify right side
    519,710.74x = 128,439,952,530.11
  5. Step 5: Solve for x
    x = 128,439,952,530.11/519,710.74
  6. Step 6: Final answer
    x = 247,137.39

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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.