Home / 1,286,029.78-1,928,650.70-889,220.50

Finding the Fourth Proportional to 1,286,029.78, 1,928,650.70 and 889,220.50

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Solution

The fourth proportional to 1,286,029.78, 1,928,650.70 and 889,220.50 is: 1,333,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,029.78 : 1,928,650.70 = 889,220.50 : x
  2. Step 2: Convert to fraction form
    1,286,029.78/1,928,650.70 = 889,220.50/x
  3. Step 3: Cross multiply
    1,286,029.78x = 1,928,650.70 × 889,220.50
  4. Step 4: Simplify right side
    1,286,029.78x = 1,714,995,737,180.77
  5. Step 5: Solve for x
    x = 1,714,995,737,180.77/1,286,029.78
  6. Step 6: Final answer
    x = 1,333,558.34

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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.