Home / 1,289,628.21-1,777,811.25-901,237.82

Finding the Fourth Proportional to 1,289,628.21, 1,777,811.25 and 901,237.82

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Solution

The fourth proportional to 1,289,628.21, 1,777,811.25 and 901,237.82 is: 1,242,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,628.21 : 1,777,811.25 = 901,237.82 : x
  2. Step 2: Convert to fraction form
    1,289,628.21/1,777,811.25 = 901,237.82/x
  3. Step 3: Cross multiply
    1,289,628.21x = 1,777,811.25 × 901,237.82
  4. Step 4: Simplify right side
    1,289,628.21x = 1,602,230,726,432.42
  5. Step 5: Solve for x
    x = 1,602,230,726,432.42/1,289,628.21
  6. Step 6: Final answer
    x = 1,242,397.39

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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.