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Finding the Fourth Proportional to 683.30, 943.54 and 435.06

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Solution

The fourth proportional to 683.30, 943.54 and 435.06 is: 600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.30 : 943.54 = 435.06 : x
  2. Step 2: Convert to fraction form
    683.30/943.54 = 435.06/x
  3. Step 3: Cross multiply
    683.30x = 943.54 × 435.06
  4. Step 4: Simplify right side
    683.30x = 410,495.42
  5. Step 5: Solve for x
    x = 410,495.42/683.30
  6. Step 6: Final answer
    x = 600.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.