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Finding the Fourth Proportional to 508,447.94, 701,656.22 and 279,009.06

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Solution

The fourth proportional to 508,447.94, 701,656.22 and 279,009.06 is: 385,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,447.94 : 701,656.22 = 279,009.06 : x
  2. Step 2: Convert to fraction form
    508,447.94/701,656.22 = 279,009.06/x
  3. Step 3: Cross multiply
    508,447.94x = 701,656.22 × 279,009.06
  4. Step 4: Simplify right side
    508,447.94x = 195,768,442,385.35
  5. Step 5: Solve for x
    x = 195,768,442,385.35/508,447.94
  6. Step 6: Final answer
    x = 385,031.44

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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.