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Finding the Fourth Proportional to 550,411.14, 759,608.98 and 305,442.27

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Solution

The fourth proportional to 550,411.14, 759,608.98 and 305,442.27 is: 421,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,411.14 : 759,608.98 = 305,442.27 : x
  2. Step 2: Convert to fraction form
    550,411.14/759,608.98 = 305,442.27/x
  3. Step 3: Cross multiply
    550,411.14x = 759,608.98 × 305,442.27
  4. Step 4: Simplify right side
    550,411.14x = 232,016,691,163.59
  5. Step 5: Solve for x
    x = 232,016,691,163.59/550,411.14
  6. Step 6: Final answer
    x = 421,533.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.