Home / 411,828.46-618,142.15-198,746.33

Finding the Fourth Proportional to 411,828.46, 618,142.15 and 198,746.33

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Solution

The fourth proportional to 411,828.46, 618,142.15 and 198,746.33 is: 298,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,828.46 : 618,142.15 = 198,746.33 : x
  2. Step 2: Convert to fraction form
    411,828.46/618,142.15 = 198,746.33/x
  3. Step 3: Cross multiply
    411,828.46x = 618,142.15 × 198,746.33
  4. Step 4: Simplify right side
    411,828.46x = 122,853,484,365.58
  5. Step 5: Solve for x
    x = 122,853,484,365.58/411,828.46
  6. Step 6: Final answer
    x = 298,312.28

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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.