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Finding the Fourth Proportional to 508,445.19, 701,652.42 and 279,006.31

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Solution

The fourth proportional to 508,445.19, 701,652.42 and 279,006.31 is: 385,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,445.19 : 701,652.42 = 279,006.31 : x
  2. Step 2: Convert to fraction form
    508,445.19/701,652.42 = 279,006.31/x
  3. Step 3: Cross multiply
    508,445.19x = 701,652.42 × 279,006.31
  4. Step 4: Simplify right side
    508,445.19x = 195,765,450,852.64
  5. Step 5: Solve for x
    x = 195,765,450,852.64/508,445.19
  6. Step 6: Final answer
    x = 385,027.64

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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.