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Finding the Fourth Proportional to 404,486.65, 606,729.98 and 379,554.85

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Solution

The fourth proportional to 404,486.65, 606,729.98 and 379,554.85 is: 569,332.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,486.65 : 606,729.98 = 379,554.85 : x
  2. Step 2: Convert to fraction form
    404,486.65/606,729.98 = 379,554.85/x
  3. Step 3: Cross multiply
    404,486.65x = 606,729.98 × 379,554.85
  4. Step 4: Simplify right side
    404,486.65x = 230,287,306,549.40
  5. Step 5: Solve for x
    x = 230,287,306,549.40/404,486.65
  6. Step 6: Final answer
    x = 569,332.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.