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Finding the Fourth Proportional to 670.09, 999.85 and 597.01

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Solution

The fourth proportional to 670.09, 999.85 and 597.01 is: 890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.09 : 999.85 = 597.01 : x
  2. Step 2: Convert to fraction form
    670.09/999.85 = 597.01/x
  3. Step 3: Cross multiply
    670.09x = 999.85 × 597.01
  4. Step 4: Simplify right side
    670.09x = 596,920.45
  5. Step 5: Solve for x
    x = 596,920.45/670.09
  6. Step 6: Final answer
    x = 890.81

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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.