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Finding the Fourth Proportional to 682,397.76, 940,712.04 and 477,804

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Solution

The fourth proportional to 682,397.76, 940,712.04 and 477,804 is: 658,671.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,397.76 : 940,712.04 = 477,804 : x
  2. Step 2: Convert to fraction form
    682,397.76/940,712.04 = 477,804/x
  3. Step 3: Cross multiply
    682,397.76x = 940,712.04 × 477,804
  4. Step 4: Simplify right side
    682,397.76x = 449,475,975,560.16
  5. Step 5: Solve for x
    x = 449,475,975,560.16/682,397.76
  6. Step 6: Final answer
    x = 658,671.53

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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.