Home / 488,742.46-674,436.78-284,826.58

Finding the Fourth Proportional to 488,742.46, 674,436.78 and 284,826.58

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Solution

The fourth proportional to 488,742.46, 674,436.78 and 284,826.58 is: 393,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,742.46 : 674,436.78 = 284,826.58 : x
  2. Step 2: Convert to fraction form
    488,742.46/674,436.78 = 284,826.58/x
  3. Step 3: Cross multiply
    488,742.46x = 674,436.78 × 284,826.58
  4. Step 4: Simplify right side
    488,742.46x = 192,097,519,787.52
  5. Step 5: Solve for x
    x = 192,097,519,787.52/488,742.46
  6. Step 6: Final answer
    x = 393,044.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.