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Finding the Fourth Proportional to 621,983.74, 858,302.04 and 350,062.96

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Solution

The fourth proportional to 621,983.74, 858,302.04 and 350,062.96 is: 483,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,983.74 : 858,302.04 = 350,062.96 : x
  2. Step 2: Convert to fraction form
    621,983.74/858,302.04 = 350,062.96/x
  3. Step 3: Cross multiply
    621,983.74x = 858,302.04 × 350,062.96
  4. Step 4: Simplify right side
    621,983.74x = 300,459,752,696.44
  5. Step 5: Solve for x
    x = 300,459,752,696.44/621,983.74
  6. Step 6: Final answer
    x = 483,066.89

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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.