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Finding the Fourth Proportional to 628.59, 867.48 and 363.07

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Solution

The fourth proportional to 628.59, 867.48 and 363.07 is: 501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.59 : 867.48 = 363.07 : x
  2. Step 2: Convert to fraction form
    628.59/867.48 = 363.07/x
  3. Step 3: Cross multiply
    628.59x = 867.48 × 363.07
  4. Step 4: Simplify right side
    628.59x = 314,955.96
  5. Step 5: Solve for x
    x = 314,955.96/628.59
  6. Step 6: Final answer
    x = 501.05

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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.