Home / 997,978.38-1,496,945.96-278,300.88

Finding the Fourth Proportional to 997,978.38, 1,496,945.96 and 278,300.88

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Solution

The fourth proportional to 997,978.38, 1,496,945.96 and 278,300.88 is: 417,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,978.38 : 1,496,945.96 = 278,300.88 : x
  2. Step 2: Convert to fraction form
    997,978.38/1,496,945.96 = 278,300.88/x
  3. Step 3: Cross multiply
    997,978.38x = 1,496,945.96 × 278,300.88
  4. Step 4: Simplify right side
    997,978.38x = 416,601,380,439.34
  5. Step 5: Solve for x
    x = 416,601,380,439.34/997,978.38
  6. Step 6: Final answer
    x = 417,445.30

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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.