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Finding the Fourth Proportional to 610,379.04, 842,321.62 and 338,439.94

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Solution

The fourth proportional to 610,379.04, 842,321.62 and 338,439.94 is: 467,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,379.04 : 842,321.62 = 338,439.94 : x
  2. Step 2: Convert to fraction form
    610,379.04/842,321.62 = 338,439.94/x
  3. Step 3: Cross multiply
    610,379.04x = 842,321.62 × 338,439.94
  4. Step 4: Simplify right side
    610,379.04x = 285,075,275,898.89
  5. Step 5: Solve for x
    x = 285,075,275,898.89/610,379.04
  6. Step 6: Final answer
    x = 467,046.31

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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.