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Finding the Fourth Proportional to 576.89, 795.76 and 419.34

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Solution

The fourth proportional to 576.89, 795.76 and 419.34 is: 578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.89 : 795.76 = 419.34 : x
  2. Step 2: Convert to fraction form
    576.89/795.76 = 419.34/x
  3. Step 3: Cross multiply
    576.89x = 795.76 × 419.34
  4. Step 4: Simplify right side
    576.89x = 333,694.00
  5. Step 5: Solve for x
    x = 333,694.00/576.89
  6. Step 6: Final answer
    x = 578.44

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1.5x scale

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.