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Finding the Fourth Proportional to 622,358, 858,803 and 350,338.96

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Solution

The fourth proportional to 622,358, 858,803 and 350,338.96 is: 483,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,358 : 858,803 = 350,338.96 : x
  2. Step 2: Convert to fraction form
    622,358/858,803 = 350,338.96/x
  3. Step 3: Cross multiply
    622,358x = 858,803 × 350,338.96
  4. Step 4: Simplify right side
    622,358x = 300,872,149,864.88
  5. Step 5: Solve for x
    x = 300,872,149,864.88/622,358
  6. Step 6: Final answer
    x = 483,439.03

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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.