Home / 800,780.82-1,105,077.63-438,204.76

Finding the Fourth Proportional to 800,780.82, 1,105,077.63 and 438,204.76

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Solution

The fourth proportional to 800,780.82, 1,105,077.63 and 438,204.76 is: 604,722.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,780.82 : 1,105,077.63 = 438,204.76 : x
  2. Step 2: Convert to fraction form
    800,780.82/1,105,077.63 = 438,204.76/x
  3. Step 3: Cross multiply
    800,780.82x = 1,105,077.63 × 438,204.76
  4. Step 4: Simplify right side
    800,780.82x = 484,250,275,926.77
  5. Step 5: Solve for x
    x = 484,250,275,926.77/800,780.82
  6. Step 6: Final answer
    x = 604,722.62

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1.5x scale

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.