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Finding the Fourth Proportional to 508,829.04, 702,196.74 and 279,408.96

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Solution

The fourth proportional to 508,829.04, 702,196.74 and 279,408.96 is: 385,591.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,829.04 : 702,196.74 = 279,408.96 : x
  2. Step 2: Convert to fraction form
    508,829.04/702,196.74 = 279,408.96/x
  3. Step 3: Cross multiply
    508,829.04x = 702,196.74 × 279,408.96
  4. Step 4: Simplify right side
    508,829.04x = 196,200,060,838.79
  5. Step 5: Solve for x
    x = 196,200,060,838.79/508,829.04
  6. Step 6: Final answer
    x = 385,591.32

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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.