Home / 610,786.40-842,890.32-338,872.13

Finding the Fourth Proportional to 610,786.40, 842,890.32 and 338,872.13

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Solution

The fourth proportional to 610,786.40, 842,890.32 and 338,872.13 is: 467,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,786.40 : 842,890.32 = 338,872.13 : x
  2. Step 2: Convert to fraction form
    610,786.40/842,890.32 = 338,872.13/x
  3. Step 3: Cross multiply
    610,786.40x = 842,890.32 × 338,872.13
  4. Step 4: Simplify right side
    610,786.40x = 285,632,032,185.97
  5. Step 5: Solve for x
    x = 285,632,032,185.97/610,786.40
  6. Step 6: Final answer
    x = 467,646.35

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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.