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Finding the Fourth Proportional to 519,957.35, 779,437.77 and 220,025.28

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Solution

The fourth proportional to 519,957.35, 779,437.77 and 220,025.28 is: 329,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,957.35 : 779,437.77 = 220,025.28 : x
  2. Step 2: Convert to fraction form
    519,957.35/779,437.77 = 220,025.28/x
  3. Step 3: Cross multiply
    519,957.35x = 779,437.77 × 220,025.28
  4. Step 4: Simplify right side
    519,957.35x = 171,496,013,586.83
  5. Step 5: Solve for x
    x = 171,496,013,586.83/519,957.35
  6. Step 6: Final answer
    x = 329,827.08

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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.