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Finding the Fourth Proportional to 595.29, 822.23 and 485.20

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Solution

The fourth proportional to 595.29, 822.23 and 485.20 is: 670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.29 : 822.23 = 485.20 : x
  2. Step 2: Convert to fraction form
    595.29/822.23 = 485.20/x
  3. Step 3: Cross multiply
    595.29x = 822.23 × 485.20
  4. Step 4: Simplify right side
    595.29x = 398,946.00
  5. Step 5: Solve for x
    x = 398,946.00/595.29
  6. Step 6: Final answer
    x = 670.17

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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.