Home / 502,742.72-693,789.47-273,300.45

Finding the Fourth Proportional to 502,742.72, 693,789.47 and 273,300.45

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Solution

The fourth proportional to 502,742.72, 693,789.47 and 273,300.45 is: 377,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,742.72 : 693,789.47 = 273,300.45 : x
  2. Step 2: Convert to fraction form
    502,742.72/693,789.47 = 273,300.45/x
  3. Step 3: Cross multiply
    502,742.72x = 693,789.47 × 273,300.45
  4. Step 4: Simplify right side
    502,742.72x = 189,612,969,520.81
  5. Step 5: Solve for x
    x = 189,612,969,520.81/502,742.72
  6. Step 6: Final answer
    x = 377,157.07

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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.