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Finding the Fourth Proportional to 504,871.40, 696,723.72 and 275,429.18

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Solution

The fourth proportional to 504,871.40, 696,723.72 and 275,429.18 is: 380,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,871.40 : 696,723.72 = 275,429.18 : x
  2. Step 2: Convert to fraction form
    504,871.40/696,723.72 = 275,429.18/x
  3. Step 3: Cross multiply
    504,871.40x = 696,723.72 × 275,429.18
  4. Step 4: Simplify right side
    504,871.40x = 191,898,042,886.15
  5. Step 5: Solve for x
    x = 191,898,042,886.15/504,871.40
  6. Step 6: Final answer
    x = 380,092.92

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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.