Home / 911,311.04-1,365,468.79-311,945.23

Finding the Fourth Proportional to 911,311.04, 1,365,468.79 and 311,945.23

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Solution

The fourth proportional to 911,311.04, 1,365,468.79 and 311,945.23 is: 467,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,311.04 : 1,365,468.79 = 311,945.23 : x
  2. Step 2: Convert to fraction form
    911,311.04/1,365,468.79 = 311,945.23/x
  3. Step 3: Cross multiply
    911,311.04x = 1,365,468.79 × 311,945.23
  4. Step 4: Simplify right side
    911,311.04x = 425,951,475,754.37
  5. Step 5: Solve for x
    x = 425,951,475,754.37/911,311.04
  6. Step 6: Final answer
    x = 467,405.16

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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.