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Finding the Fourth Proportional to 519,645.08, 779,549.70 and 220,127.60

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Solution

The fourth proportional to 519,645.08, 779,549.70 and 220,127.60 is: 330,226.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,645.08 : 779,549.70 = 220,127.60 : x
  2. Step 2: Convert to fraction form
    519,645.08/779,549.70 = 220,127.60/x
  3. Step 3: Cross multiply
    519,645.08x = 779,549.70 × 220,127.60
  4. Step 4: Simplify right side
    519,645.08x = 171,600,404,541.72
  5. Step 5: Solve for x
    x = 171,600,404,541.72/519,645.08
  6. Step 6: Final answer
    x = 330,226.17

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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.