Home / 879,026.43-1,318,738.50-280,021.71

Finding the Fourth Proportional to 879,026.43, 1,318,738.50 and 280,021.71

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Solution

The fourth proportional to 879,026.43, 1,318,738.50 and 280,021.71 is: 420,095.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,026.43 : 1,318,738.50 = 280,021.71 : x
  2. Step 2: Convert to fraction form
    879,026.43/1,318,738.50 = 280,021.71/x
  3. Step 3: Cross multiply
    879,026.43x = 1,318,738.50 × 280,021.71
  4. Step 4: Simplify right side
    879,026.43x = 369,275,409,812.84
  5. Step 5: Solve for x
    x = 369,275,409,812.84/879,026.43
  6. Step 6: Final answer
    x = 420,095.91

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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.