Home / 781,021.32-1,077,779.97-441,496.86

Finding the Fourth Proportional to 781,021.32, 1,077,779.97 and 441,496.86

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Solution

The fourth proportional to 781,021.32, 1,077,779.97 and 441,496.86 is: 609,249.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,021.32 : 1,077,779.97 = 441,496.86 : x
  2. Step 2: Convert to fraction form
    781,021.32/1,077,779.97 = 441,496.86/x
  3. Step 3: Cross multiply
    781,021.32x = 1,077,779.97 × 441,496.86
  4. Step 4: Simplify right side
    781,021.32x = 475,836,472,525.89
  5. Step 5: Solve for x
    x = 475,836,472,525.89/781,021.32
  6. Step 6: Final answer
    x = 609,249.02

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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.