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Finding the Fourth Proportional to 508,725.72, 702,050.28 and 279,304.29

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Solution

The fourth proportional to 508,725.72, 702,050.28 and 279,304.29 is: 385,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,725.72 : 702,050.28 = 279,304.29 : x
  2. Step 2: Convert to fraction form
    508,725.72/702,050.28 = 279,304.29/x
  3. Step 3: Cross multiply
    508,725.72x = 702,050.28 × 279,304.29
  4. Step 4: Simplify right side
    508,725.72x = 196,085,654,999.70
  5. Step 5: Solve for x
    x = 196,085,654,999.70/508,725.72
  6. Step 6: Final answer
    x = 385,444.74

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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.