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Finding the Fourth Proportional to 638,370.94, 880,951.48 and 347,983.06

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Solution

The fourth proportional to 638,370.94, 880,951.48 and 347,983.06 is: 480,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,370.94 : 880,951.48 = 347,983.06 : x
  2. Step 2: Convert to fraction form
    638,370.94/880,951.48 = 347,983.06/x
  3. Step 3: Cross multiply
    638,370.94x = 880,951.48 × 347,983.06
  4. Step 4: Simplify right side
    638,370.94x = 306,556,191,721.93
  5. Step 5: Solve for x
    x = 306,556,191,721.93/638,370.94
  6. Step 6: Final answer
    x = 480,216.40

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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.