Home / 778,802.61-1,168,203.78-329,406.78

Finding the Fourth Proportional to 778,802.61, 1,168,203.78 and 329,406.78

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Solution

The fourth proportional to 778,802.61, 1,168,203.78 and 329,406.78 is: 494,110.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,802.61 : 1,168,203.78 = 329,406.78 : x
  2. Step 2: Convert to fraction form
    778,802.61/1,168,203.78 = 329,406.78/x
  3. Step 3: Cross multiply
    778,802.61x = 1,168,203.78 × 329,406.78
  4. Step 4: Simplify right side
    778,802.61x = 384,814,245,553.63
  5. Step 5: Solve for x
    x = 384,814,245,553.63/778,802.61
  6. Step 6: Final answer
    x = 494,110.11

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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.