Home / 1,022,639.28-1,533,958.92-312,667.32

Finding the Fourth Proportional to 1,022,639.28, 1,533,958.92 and 312,667.32

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Solution

The fourth proportional to 1,022,639.28, 1,533,958.92 and 312,667.32 is: 469,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,639.28 : 1,533,958.92 = 312,667.32 : x
  2. Step 2: Convert to fraction form
    1,022,639.28/1,533,958.92 = 312,667.32/x
  3. Step 3: Cross multiply
    1,022,639.28x = 1,533,958.92 × 312,667.32
  4. Step 4: Simplify right side
    1,022,639.28x = 479,618,824,506.49
  5. Step 5: Solve for x
    x = 479,618,824,506.49/1,022,639.28
  6. Step 6: Final answer
    x = 469,000.98

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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.