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Finding the Fourth Proportional to 519,701.13, 774,747.75 and 511,511.52

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Solution

The fourth proportional to 519,701.13, 774,747.75 and 511,511.52 is: 762,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,701.13 : 774,747.75 = 511,511.52 : x
  2. Step 2: Convert to fraction form
    519,701.13/774,747.75 = 511,511.52/x
  3. Step 3: Cross multiply
    519,701.13x = 774,747.75 × 511,511.52
  4. Step 4: Simplify right side
    519,701.13x = 396,292,399,219.08
  5. Step 5: Solve for x
    x = 396,292,399,219.08/519,701.13
  6. Step 6: Final answer
    x = 762,539.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.