Home / 739,471.30-1,109,270.45-259,657.86

Finding the Fourth Proportional to 739,471.30, 1,109,270.45 and 259,657.86

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Solution

The fourth proportional to 739,471.30, 1,109,270.45 and 259,657.86 is: 389,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,471.30 : 1,109,270.45 = 259,657.86 : x
  2. Step 2: Convert to fraction form
    739,471.30/1,109,270.45 = 259,657.86/x
  3. Step 3: Cross multiply
    739,471.30x = 1,109,270.45 × 259,657.86
  4. Step 4: Simplify right side
    739,471.30x = 288,030,796,017.15
  5. Step 5: Solve for x
    x = 288,030,796,017.15/739,471.30
  6. Step 6: Final answer
    x = 389,509.10

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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.