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Finding the Fourth Proportional to 600.70, 842.90 and 600.70

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Solution

The fourth proportional to 600.70, 842.90 and 600.70 is: 842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.70 : 842.90 = 600.70 : x
  2. Step 2: Convert to fraction form
    600.70/842.90 = 600.70/x
  3. Step 3: Cross multiply
    600.70x = 842.90 × 600.70
  4. Step 4: Simplify right side
    600.70x = 506,330.03
  5. Step 5: Solve for x
    x = 506,330.03/600.70
  6. Step 6: Final answer
    x = 842.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.