Home / 502,514.43-693,189.19-308,787.54

Finding the Fourth Proportional to 502,514.43, 693,189.19 and 308,787.54

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Solution

The fourth proportional to 502,514.43, 693,189.19 and 308,787.54 is: 425,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,514.43 : 693,189.19 = 308,787.54 : x
  2. Step 2: Convert to fraction form
    502,514.43/693,189.19 = 308,787.54/x
  3. Step 3: Cross multiply
    502,514.43x = 693,189.19 × 308,787.54
  4. Step 4: Simplify right side
    502,514.43x = 214,048,184,734.69
  5. Step 5: Solve for x
    x = 214,048,184,734.69/502,514.43
  6. Step 6: Final answer
    x = 425,954.30

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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.