Home / 1,022,688.32-1,534,032.60-312,716.38

Finding the Fourth Proportional to 1,022,688.32, 1,534,032.60 and 312,716.38

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Solution

The fourth proportional to 1,022,688.32, 1,534,032.60 and 312,716.38 is: 469,074.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,688.32 : 1,534,032.60 = 312,716.38 : x
  2. Step 2: Convert to fraction form
    1,022,688.32/1,534,032.60 = 312,716.38/x
  3. Step 3: Cross multiply
    1,022,688.32x = 1,534,032.60 × 312,716.38
  4. Step 4: Simplify right side
    1,022,688.32x = 479,717,121,473.99
  5. Step 5: Solve for x
    x = 479,717,121,473.99/1,022,688.32
  6. Step 6: Final answer
    x = 469,074.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.