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Finding the Fourth Proportional to 630.45, 943.85 and 569.70

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Solution

The fourth proportional to 630.45, 943.85 and 569.70 is: 852.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.45 : 943.85 = 569.70 : x
  2. Step 2: Convert to fraction form
    630.45/943.85 = 569.70/x
  3. Step 3: Cross multiply
    630.45x = 943.85 × 569.70
  4. Step 4: Simplify right side
    630.45x = 537,712.77
  5. Step 5: Solve for x
    x = 537,712.77/630.45
  6. Step 6: Final answer
    x = 852.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.