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Finding the Fourth Proportional to 633,478.92, 948,896.28 and 379,955.40

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Solution

The fourth proportional to 633,478.92, 948,896.28 and 379,955.40 is: 569,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,478.92 : 948,896.28 = 379,955.40 : x
  2. Step 2: Convert to fraction form
    633,478.92/948,896.28 = 379,955.40/x
  3. Step 3: Cross multiply
    633,478.92x = 948,896.28 × 379,955.40
  4. Step 4: Simplify right side
    633,478.92x = 360,538,265,625.91
  5. Step 5: Solve for x
    x = 360,538,265,625.91/633,478.92
  6. Step 6: Final answer
    x = 569,140.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.