Home / 825,933.12-1,238,403.96-286,011.42

Finding the Fourth Proportional to 825,933.12, 1,238,403.96 and 286,011.42

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Solution

The fourth proportional to 825,933.12, 1,238,403.96 and 286,011.42 is: 428,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,933.12 : 1,238,403.96 = 286,011.42 : x
  2. Step 2: Convert to fraction form
    825,933.12/1,238,403.96 = 286,011.42/x
  3. Step 3: Cross multiply
    825,933.12x = 1,238,403.96 × 286,011.42
  4. Step 4: Simplify right side
    825,933.12x = 354,197,675,133.22
  5. Step 5: Solve for x
    x = 354,197,675,133.22/825,933.12
  6. Step 6: Final answer
    x = 428,845.47

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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.