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Finding the Fourth Proportional to 622.07, 858.99 and 435.93

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Solution

The fourth proportional to 622.07, 858.99 and 435.93 is: 601.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.07 : 858.99 = 435.93 : x
  2. Step 2: Convert to fraction form
    622.07/858.99 = 435.93/x
  3. Step 3: Cross multiply
    622.07x = 858.99 × 435.93
  4. Step 4: Simplify right side
    622.07x = 374,459.51
  5. Step 5: Solve for x
    x = 374,459.51/622.07
  6. Step 6: Final answer
    x = 601.96

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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.