Home / 1,188,944.25-1,783,614.41-390,011.28

Finding the Fourth Proportional to 1,188,944.25, 1,783,614.41 and 390,011.28

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Solution

The fourth proportional to 1,188,944.25, 1,783,614.41 and 390,011.28 is: 585,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,944.25 : 1,783,614.41 = 390,011.28 : x
  2. Step 2: Convert to fraction form
    1,188,944.25/1,783,614.41 = 390,011.28/x
  3. Step 3: Cross multiply
    1,188,944.25x = 1,783,614.41 × 390,011.28
  4. Step 4: Simplify right side
    1,188,944.25x = 695,629,739,070.55
  5. Step 5: Solve for x
    x = 695,629,739,070.55/1,188,944.25
  6. Step 6: Final answer
    x = 585,081.88

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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.