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Finding the Fourth Proportional to 682,757.47, 942,204.72 and 380,951.47

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Solution

The fourth proportional to 682,757.47, 942,204.72 and 380,951.47 is: 525,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,757.47 : 942,204.72 = 380,951.47 : x
  2. Step 2: Convert to fraction form
    682,757.47/942,204.72 = 380,951.47/x
  3. Step 3: Cross multiply
    682,757.47x = 942,204.72 × 380,951.47
  4. Step 4: Simplify right side
    682,757.47x = 358,934,273,124.94
  5. Step 5: Solve for x
    x = 358,934,273,124.94/682,757.47
  6. Step 6: Final answer
    x = 525,712.70

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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.