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Finding the Fourth Proportional to 650,661.17, 897,916.93 and 378,887.54

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Solution

The fourth proportional to 650,661.17, 897,916.93 and 378,887.54 is: 522,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,661.17 : 897,916.93 = 378,887.54 : x
  2. Step 2: Convert to fraction form
    650,661.17/897,916.93 = 378,887.54/x
  3. Step 3: Cross multiply
    650,661.17x = 897,916.93 × 378,887.54
  4. Step 4: Simplify right side
    650,661.17x = 340,209,531,295.25
  5. Step 5: Solve for x
    x = 340,209,531,295.25/650,661.17
  6. Step 6: Final answer
    x = 522,867.43

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1.5x scale

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.