Home / 1,412,722.67-1,949,581.64-768,147.21

Finding the Fourth Proportional to 1,412,722.67, 1,949,581.64 and 768,147.21

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Solution

The fourth proportional to 1,412,722.67, 1,949,581.64 and 768,147.21 is: 1,060,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,722.67 : 1,949,581.64 = 768,147.21 : x
  2. Step 2: Convert to fraction form
    1,412,722.67/1,949,581.64 = 768,147.21/x
  3. Step 3: Cross multiply
    1,412,722.67x = 1,949,581.64 × 768,147.21
  4. Step 4: Simplify right side
    1,412,722.67x = 1,497,565,699,353.59
  5. Step 5: Solve for x
    x = 1,497,565,699,353.59/1,412,722.67
  6. Step 6: Final answer
    x = 1,060,056.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.