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Finding the Fourth Proportional to 613,498.28, 846,330.84 and 395,649.48

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Solution

The fourth proportional to 613,498.28, 846,330.84 and 395,649.48 is: 545,804.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,498.28 : 846,330.84 = 395,649.48 : x
  2. Step 2: Convert to fraction form
    613,498.28/846,330.84 = 395,649.48/x
  3. Step 3: Cross multiply
    613,498.28x = 846,330.84 × 395,649.48
  4. Step 4: Simplify right side
    613,498.28x = 334,850,356,753.96
  5. Step 5: Solve for x
    x = 334,850,356,753.96/613,498.28
  6. Step 6: Final answer
    x = 545,804.88

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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.