Home / 859,513.68-1,289,282.40-228,424.32

Finding the Fourth Proportional to 859,513.68, 1,289,282.40 and 228,424.32

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Solution

The fourth proportional to 859,513.68, 1,289,282.40 and 228,424.32 is: 342,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,513.68 : 1,289,282.40 = 228,424.32 : x
  2. Step 2: Convert to fraction form
    859,513.68/1,289,282.40 = 228,424.32/x
  3. Step 3: Cross multiply
    859,513.68x = 1,289,282.40 × 228,424.32
  4. Step 4: Simplify right side
    859,513.68x = 294,503,455,507.97
  5. Step 5: Solve for x
    x = 294,503,455,507.97/859,513.68
  6. Step 6: Final answer
    x = 342,639.64

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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.