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Finding the Fourth Proportional to 507,238.32, 699,987.76 and 292,376.96

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Solution

The fourth proportional to 507,238.32, 699,987.76 and 292,376.96 is: 403,479.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,238.32 : 699,987.76 = 292,376.96 : x
  2. Step 2: Convert to fraction form
    507,238.32/699,987.76 = 292,376.96/x
  3. Step 3: Cross multiply
    507,238.32x = 699,987.76 × 292,376.96
  4. Step 4: Simplify right side
    507,238.32x = 204,660,293,306.01
  5. Step 5: Solve for x
    x = 204,660,293,306.01/507,238.32
  6. Step 6: Final answer
    x = 403,479.56

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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.