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Finding the Fourth Proportional to 610,405.98, 842,370.33 and 338,485.33

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Solution

The fourth proportional to 610,405.98, 842,370.33 and 338,485.33 is: 467,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,405.98 : 842,370.33 = 338,485.33 : x
  2. Step 2: Convert to fraction form
    610,405.98/842,370.33 = 338,485.33/x
  3. Step 3: Cross multiply
    610,405.98x = 842,370.33 × 338,485.33
  4. Step 4: Simplify right side
    610,405.98x = 285,130,001,454.54
  5. Step 5: Solve for x
    x = 285,130,001,454.54/610,405.98
  6. Step 6: Final answer
    x = 467,115.35

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1.5x scale

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.