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Finding the Fourth Proportional to 634,135.37, 875,106.60 and 347,649.31

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Solution

The fourth proportional to 634,135.37, 875,106.60 and 347,649.31 is: 479,755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,135.37 : 875,106.60 = 347,649.31 : x
  2. Step 2: Convert to fraction form
    634,135.37/875,106.60 = 347,649.31/x
  3. Step 3: Cross multiply
    634,135.37x = 875,106.60 × 347,649.31
  4. Step 4: Simplify right side
    634,135.37x = 304,230,205,666.45
  5. Step 5: Solve for x
    x = 304,230,205,666.45/634,135.37
  6. Step 6: Final answer
    x = 479,755.93

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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.