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Finding the Fourth Proportional to 634,131.87, 875,101.77 and 347,645.81

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Solution

The fourth proportional to 634,131.87, 875,101.77 and 347,645.81 is: 479,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,131.87 : 875,101.77 = 347,645.81 : x
  2. Step 2: Convert to fraction form
    634,131.87/875,101.77 = 347,645.81/x
  3. Step 3: Cross multiply
    634,131.87x = 875,101.77 × 347,645.81
  4. Step 4: Simplify right side
    634,131.87x = 304,225,459,288.58
  5. Step 5: Solve for x
    x = 304,225,459,288.58/634,131.87
  6. Step 6: Final answer
    x = 479,751.10

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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.