Home / 1,129,338.94-1,558,490.79-620,074.30

Finding the Fourth Proportional to 1,129,338.94, 1,558,490.79 and 620,074.30

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Solution

The fourth proportional to 1,129,338.94, 1,558,490.79 and 620,074.30 is: 855,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,338.94 : 1,558,490.79 = 620,074.30 : x
  2. Step 2: Convert to fraction form
    1,129,338.94/1,558,490.79 = 620,074.30/x
  3. Step 3: Cross multiply
    1,129,338.94x = 1,558,490.79 × 620,074.30
  4. Step 4: Simplify right side
    1,129,338.94x = 966,380,085,665.70
  5. Step 5: Solve for x
    x = 966,380,085,665.70/1,129,338.94
  6. Step 6: Final answer
    x = 855,704.21

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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.