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Finding the Fourth Proportional to 607.04, 837.74 and 385.99

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Solution

The fourth proportional to 607.04, 837.74 and 385.99 is: 532.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.04 : 837.74 = 385.99 : x
  2. Step 2: Convert to fraction form
    607.04/837.74 = 385.99/x
  3. Step 3: Cross multiply
    607.04x = 837.74 × 385.99
  4. Step 4: Simplify right side
    607.04x = 323,360.49
  5. Step 5: Solve for x
    x = 323,360.49/607.04
  6. Step 6: Final answer
    x = 532.68

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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.