Home / 1,130,757.45-1,560,427.79-621,448.89

Finding the Fourth Proportional to 1,130,757.45, 1,560,427.79 and 621,448.89

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Solution

The fourth proportional to 1,130,757.45, 1,560,427.79 and 621,448.89 is: 857,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,757.45 : 1,560,427.79 = 621,448.89 : x
  2. Step 2: Convert to fraction form
    1,130,757.45/1,560,427.79 = 621,448.89/x
  3. Step 3: Cross multiply
    1,130,757.45x = 1,560,427.79 × 621,448.89
  4. Step 4: Simplify right side
    1,130,757.45x = 969,726,114,913.41
  5. Step 5: Solve for x
    x = 969,726,114,913.41/1,130,757.45
  6. Step 6: Final answer
    x = 857,589.85

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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.