Home / 1,129,512.38-1,558,738.01-620,225.69

Finding the Fourth Proportional to 1,129,512.38, 1,558,738.01 and 620,225.69

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Solution

The fourth proportional to 1,129,512.38, 1,558,738.01 and 620,225.69 is: 855,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,512.38 : 1,558,738.01 = 620,225.69 : x
  2. Step 2: Convert to fraction form
    1,129,512.38/1,558,738.01 = 620,225.69/x
  3. Step 3: Cross multiply
    1,129,512.38x = 1,558,738.01 × 620,225.69
  4. Step 4: Simplify right side
    1,129,512.38x = 966,769,351,538.35
  5. Step 5: Solve for x
    x = 966,769,351,538.35/1,129,512.38
  6. Step 6: Final answer
    x = 855,917.45

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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.