Home / 427,583.14-641,560.74-268,024.72

Finding the Fourth Proportional to 427,583.14, 641,560.74 and 268,024.72

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Solution

The fourth proportional to 427,583.14, 641,560.74 and 268,024.72 is: 402,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,583.14 : 641,560.74 = 268,024.72 : x
  2. Step 2: Convert to fraction form
    427,583.14/641,560.74 = 268,024.72/x
  3. Step 3: Cross multiply
    427,583.14x = 641,560.74 × 268,024.72
  4. Step 4: Simplify right side
    427,583.14x = 171,954,137,701.49
  5. Step 5: Solve for x
    x = 171,954,137,701.49/427,583.14
  6. Step 6: Final answer
    x = 402,153.69

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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.