Home / 879,243.12-1,318,850.28-280,196.28

Finding the Fourth Proportional to 879,243.12, 1,318,850.28 and 280,196.28

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Solution

The fourth proportional to 879,243.12, 1,318,850.28 and 280,196.28 is: 420,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,243.12 : 1,318,850.28 = 280,196.28 : x
  2. Step 2: Convert to fraction form
    879,243.12/1,318,850.28 = 280,196.28/x
  3. Step 3: Cross multiply
    879,243.12x = 1,318,850.28 × 280,196.28
  4. Step 4: Simplify right side
    879,243.12x = 369,536,942,332.96
  5. Step 5: Solve for x
    x = 369,536,942,332.96/879,243.12
  6. Step 6: Final answer
    x = 420,289.83

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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.