Home / 1,277,402.28-1,762,840.68-825,480.60

Finding the Fourth Proportional to 1,277,402.28, 1,762,840.68 and 825,480.60

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Solution

The fourth proportional to 1,277,402.28, 1,762,840.68 and 825,480.60 is: 1,139,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,402.28 : 1,762,840.68 = 825,480.60 : x
  2. Step 2: Convert to fraction form
    1,277,402.28/1,762,840.68 = 825,480.60/x
  3. Step 3: Cross multiply
    1,277,402.28x = 1,762,840.68 × 825,480.60
  4. Step 4: Simplify right side
    1,277,402.28x = 1,455,190,782,230.81
  5. Step 5: Solve for x
    x = 1,455,190,782,230.81/1,277,402.28
  6. Step 6: Final answer
    x = 1,139,179.73

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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.