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Finding the Fourth Proportional to 714.83, 1,072.10 and 304.00

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Solution

The fourth proportional to 714.83, 1,072.10 and 304.00 is: 455.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.83 : 1,072.10 = 304.00 : x
  2. Step 2: Convert to fraction form
    714.83/1,072.10 = 304.00/x
  3. Step 3: Cross multiply
    714.83x = 1,072.10 × 304.00
  4. Step 4: Simplify right side
    714.83x = 325,916.48
  5. Step 5: Solve for x
    x = 325,916.48/714.83
  6. Step 6: Final answer
    x = 455.94

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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.