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Finding the Fourth Proportional to 683,145.76, 942,755.88 and 377,221.36

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Solution

The fourth proportional to 683,145.76, 942,755.88 and 377,221.36 is: 520,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,145.76 : 942,755.88 = 377,221.36 : x
  2. Step 2: Convert to fraction form
    683,145.76/942,755.88 = 377,221.36/x
  3. Step 3: Cross multiply
    683,145.76x = 942,755.88 × 377,221.36
  4. Step 4: Simplify right side
    683,145.76x = 355,627,655,201.60
  5. Step 5: Solve for x
    x = 355,627,655,201.60/683,145.76
  6. Step 6: Final answer
    x = 520,573.61

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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.