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Finding the Fourth Proportional to 502,679.66, 693,680.36 and 276,323.54

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Solution

The fourth proportional to 502,679.66, 693,680.36 and 276,323.54 is: 381,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,679.66 : 693,680.36 = 276,323.54 : x
  2. Step 2: Convert to fraction form
    502,679.66/693,680.36 = 276,323.54/x
  3. Step 3: Cross multiply
    502,679.66x = 693,680.36 × 276,323.54
  4. Step 4: Simplify right side
    502,679.66x = 191,680,212,703.67
  5. Step 5: Solve for x
    x = 191,680,212,703.67/502,679.66
  6. Step 6: Final answer
    x = 381,316.83

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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.