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Finding the Fourth Proportional to 404,075.40, 606,285.90 and 254,430.60

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Solution

The fourth proportional to 404,075.40, 606,285.90 and 254,430.60 is: 381,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,075.40 : 606,285.90 = 254,430.60 : x
  2. Step 2: Convert to fraction form
    404,075.40/606,285.90 = 254,430.60/x
  3. Step 3: Cross multiply
    404,075.40x = 606,285.90 × 254,430.60
  4. Step 4: Simplify right side
    404,075.40x = 154,257,685,308.54
  5. Step 5: Solve for x
    x = 154,257,685,308.54/404,075.40
  6. Step 6: Final answer
    x = 381,754.71

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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.