Home / 1,188,942.48-1,783,039.07-390,037.86

Finding the Fourth Proportional to 1,188,942.48, 1,783,039.07 and 390,037.86

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Solution

The fourth proportional to 1,188,942.48, 1,783,039.07 and 390,037.86 is: 584,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,942.48 : 1,783,039.07 = 390,037.86 : x
  2. Step 2: Convert to fraction form
    1,188,942.48/1,783,039.07 = 390,037.86/x
  3. Step 3: Cross multiply
    1,188,942.48x = 1,783,039.07 × 390,037.86
  4. Step 4: Simplify right side
    1,188,942.48x = 695,452,744,134.29
  5. Step 5: Solve for x
    x = 695,452,744,134.29/1,188,942.48
  6. Step 6: Final answer
    x = 584,933.89

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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.