Home / 502,921.95-694,011.16-285,145.27

Finding the Fourth Proportional to 502,921.95, 694,011.16 and 285,145.27

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Solution

The fourth proportional to 502,921.95, 694,011.16 and 285,145.27 is: 393,488.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,921.95 : 694,011.16 = 285,145.27 : x
  2. Step 2: Convert to fraction form
    502,921.95/694,011.16 = 285,145.27/x
  3. Step 3: Cross multiply
    502,921.95x = 694,011.16 × 285,145.27
  4. Step 4: Simplify right side
    502,921.95x = 197,893,999,601.21
  5. Step 5: Solve for x
    x = 197,893,999,601.21/502,921.95
  6. Step 6: Final answer
    x = 393,488.49

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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.