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Finding the Fourth Proportional to 519,802.92, 779,801.58 and 164,721.60

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Solution

The fourth proportional to 519,802.92, 779,801.58 and 164,721.60 is: 247,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,802.92 : 779,801.58 = 164,721.60 : x
  2. Step 2: Convert to fraction form
    519,802.92/779,801.58 = 164,721.60/x
  3. Step 3: Cross multiply
    519,802.92x = 779,801.58 × 164,721.60
  4. Step 4: Simplify right side
    519,802.92x = 128,450,163,940.13
  5. Step 5: Solve for x
    x = 128,450,163,940.13/519,802.92
  6. Step 6: Final answer
    x = 247,113.20

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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.