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Finding the Fourth Proportional to 587,179, 810,307.02 and 318,907

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Solution

The fourth proportional to 587,179, 810,307.02 and 318,907 is: 440,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,179 : 810,307.02 = 318,907 : x
  2. Step 2: Convert to fraction form
    587,179/810,307.02 = 318,907/x
  3. Step 3: Cross multiply
    587,179x = 810,307.02 × 318,907
  4. Step 4: Simplify right side
    587,179x = 258,412,580,827.14
  5. Step 5: Solve for x
    x = 258,412,580,827.14/587,179
  6. Step 6: Final answer
    x = 440,091.66

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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.