Home / 1,129,286.37-1,558,417.83-620,021.55

Finding the Fourth Proportional to 1,129,286.37, 1,558,417.83 and 620,021.55

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Solution

The fourth proportional to 1,129,286.37, 1,558,417.83 and 620,021.55 is: 855,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,286.37 : 1,558,417.83 = 620,021.55 : x
  2. Step 2: Convert to fraction form
    1,129,286.37/1,558,417.83 = 620,021.55/x
  3. Step 3: Cross multiply
    1,129,286.37x = 1,558,417.83 × 620,021.55
  4. Step 4: Simplify right side
    1,129,286.37x = 966,252,638,504.24
  5. Step 5: Solve for x
    x = 966,252,638,504.24/1,129,286.37
  6. Step 6: Final answer
    x = 855,631.19

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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.