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Finding the Fourth Proportional to 519,470.40, 779,059.80 and 164,593.20

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Solution

The fourth proportional to 519,470.40, 779,059.80 and 164,593.20 is: 246,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,470.40 : 779,059.80 = 164,593.20 : x
  2. Step 2: Convert to fraction form
    519,470.40/779,059.80 = 164,593.20/x
  3. Step 3: Cross multiply
    519,470.40x = 779,059.80 × 164,593.20
  4. Step 4: Simplify right side
    519,470.40x = 128,227,945,473.36
  5. Step 5: Solve for x
    x = 128,227,945,473.36/519,470.40
  6. Step 6: Final answer
    x = 246,843.60

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1.5x scale

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.