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Finding the Fourth Proportional to 502,683.72, 693,705.84 and 276,343.80

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Solution

The fourth proportional to 502,683.72, 693,705.84 and 276,343.80 is: 381,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,683.72 : 693,705.84 = 276,343.80 : x
  2. Step 2: Convert to fraction form
    502,683.72/693,705.84 = 276,343.80/x
  3. Step 3: Cross multiply
    502,683.72x = 693,705.84 × 276,343.80
  4. Step 4: Simplify right side
    502,683.72x = 191,701,307,907.79
  5. Step 5: Solve for x
    x = 191,701,307,907.79/502,683.72
  6. Step 6: Final answer
    x = 381,355.71

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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.