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Finding the Fourth Proportional to 670.14, 999.32 and 562.62

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Solution

The fourth proportional to 670.14, 999.32 and 562.62 is: 838.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.14 : 999.32 = 562.62 : x
  2. Step 2: Convert to fraction form
    670.14/999.32 = 562.62/x
  3. Step 3: Cross multiply
    670.14x = 999.32 × 562.62
  4. Step 4: Simplify right side
    670.14x = 562,234.61
  5. Step 5: Solve for x
    x = 562,234.61/670.14
  6. Step 6: Final answer
    x = 838.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.