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Finding the Fourth Proportional to 647.01, 893.01 and 425.98

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Solution

The fourth proportional to 647.01, 893.01 and 425.98 is: 587.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.01 : 893.01 = 425.98 : x
  2. Step 2: Convert to fraction form
    647.01/893.01 = 425.98/x
  3. Step 3: Cross multiply
    647.01x = 893.01 × 425.98
  4. Step 4: Simplify right side
    647.01x = 380,397.80
  5. Step 5: Solve for x
    x = 380,397.80/647.01
  6. Step 6: Final answer
    x = 587.94

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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.