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Finding the Fourth Proportional to 707,502.61, 976,247.44 and 397,393.29

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Solution

The fourth proportional to 707,502.61, 976,247.44 and 397,393.29 is: 548,343.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,502.61 : 976,247.44 = 397,393.29 : x
  2. Step 2: Convert to fraction form
    707,502.61/976,247.44 = 397,393.29/x
  3. Step 3: Cross multiply
    707,502.61x = 976,247.44 × 397,393.29
  4. Step 4: Simplify right side
    707,502.61x = 387,954,182,035.68
  5. Step 5: Solve for x
    x = 387,954,182,035.68/707,502.61
  6. Step 6: Final answer
    x = 548,343.11

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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.