Home / 502,922.81-694,012.36-285,146.14

Finding the Fourth Proportional to 502,922.81, 694,012.36 and 285,146.14

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Solution

The fourth proportional to 502,922.81, 694,012.36 and 285,146.14 is: 393,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,922.81 : 694,012.36 = 285,146.14 : x
  2. Step 2: Convert to fraction form
    502,922.81/694,012.36 = 285,146.14/x
  3. Step 3: Cross multiply
    502,922.81x = 694,012.36 × 285,146.14
  4. Step 4: Simplify right side
    502,922.81x = 197,894,940,670.50
  5. Step 5: Solve for x
    x = 197,894,940,670.50/502,922.81
  6. Step 6: Final answer
    x = 393,489.69

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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.