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Finding the Fourth Proportional to 604.30, 833.46 and 511.30

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Solution

The fourth proportional to 604.30, 833.46 and 511.30 is: 705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.30 : 833.46 = 511.30 : x
  2. Step 2: Convert to fraction form
    604.30/833.46 = 511.30/x
  3. Step 3: Cross multiply
    604.30x = 833.46 × 511.30
  4. Step 4: Simplify right side
    604.30x = 426,148.10
  5. Step 5: Solve for x
    x = 426,148.10/604.30
  6. Step 6: Final answer
    x = 705.19

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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.