Home / 1,129,626-1,558,883.88-620,336.88

Finding the Fourth Proportional to 1,129,626, 1,558,883.88 and 620,336.88

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Solution

The fourth proportional to 1,129,626, 1,558,883.88 and 620,336.88 is: 856,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,626 : 1,558,883.88 = 620,336.88 : x
  2. Step 2: Convert to fraction form
    1,129,626/1,558,883.88 = 620,336.88/x
  3. Step 3: Cross multiply
    1,129,626x = 1,558,883.88 × 620,336.88
  4. Step 4: Simplify right side
    1,129,626x = 967,033,162,401.49
  5. Step 5: Solve for x
    x = 967,033,162,401.49/1,129,626
  6. Step 6: Final answer
    x = 856,064.89

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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.