Home / 1,439,039.22-2,158,182.60-427,888.86

Finding the Fourth Proportional to 1,439,039.22, 2,158,182.60 and 427,888.86

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Solution

The fourth proportional to 1,439,039.22, 2,158,182.60 and 427,888.86 is: 641,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,039.22 : 2,158,182.60 = 427,888.86 : x
  2. Step 2: Convert to fraction form
    1,439,039.22/2,158,182.60 = 427,888.86/x
  3. Step 3: Cross multiply
    1,439,039.22x = 2,158,182.60 × 427,888.86
  4. Step 4: Simplify right side
    1,439,039.22x = 923,462,292,385.84
  5. Step 5: Solve for x
    x = 923,462,292,385.84/1,439,039.22
  6. Step 6: Final answer
    x = 641,721.42

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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.