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Finding the Fourth Proportional to 606.30, 914.87 and 530.70

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Solution

The fourth proportional to 606.30, 914.87 and 530.70 is: 800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.30 : 914.87 = 530.70 : x
  2. Step 2: Convert to fraction form
    606.30/914.87 = 530.70/x
  3. Step 3: Cross multiply
    606.30x = 914.87 × 530.70
  4. Step 4: Simplify right side
    606.30x = 485,518.86
  5. Step 5: Solve for x
    x = 485,518.86/606.30
  6. Step 6: Final answer
    x = 800.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.