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Finding the Fourth Proportional to 814,871.82, 1,124,523.84 and 488,374.48

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Solution

The fourth proportional to 814,871.82, 1,124,523.84 and 488,374.48 is: 673,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,871.82 : 1,124,523.84 = 488,374.48 : x
  2. Step 2: Convert to fraction form
    814,871.82/1,124,523.84 = 488,374.48/x
  3. Step 3: Cross multiply
    814,871.82x = 1,124,523.84 × 488,374.48
  4. Step 4: Simplify right side
    814,871.82x = 549,188,745,607.60
  5. Step 5: Solve for x
    x = 549,188,745,607.60/814,871.82
  6. Step 6: Final answer
    x = 673,957.22

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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.