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Finding the Fourth Proportional to 607.58, 910.74 and 486.08

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Solution

The fourth proportional to 607.58, 910.74 and 486.08 is: 728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.58 : 910.74 = 486.08 : x
  2. Step 2: Convert to fraction form
    607.58/910.74 = 486.08/x
  3. Step 3: Cross multiply
    607.58x = 910.74 × 486.08
  4. Step 4: Simplify right side
    607.58x = 442,692.50
  5. Step 5: Solve for x
    x = 442,692.50/607.58
  6. Step 6: Final answer
    x = 728.62

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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.