Home / 778,894.40-1,168,255.20-217,985.60

Finding the Fourth Proportional to 778,894.40, 1,168,255.20 and 217,985.60

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Solution

The fourth proportional to 778,894.40, 1,168,255.20 and 217,985.60 is: 326,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,894.40 : 1,168,255.20 = 217,985.60 : x
  2. Step 2: Convert to fraction form
    778,894.40/1,168,255.20 = 217,985.60/x
  3. Step 3: Cross multiply
    778,894.40x = 1,168,255.20 × 217,985.60
  4. Step 4: Simplify right side
    778,894.40x = 254,662,810,725.12
  5. Step 5: Solve for x
    x = 254,662,810,725.12/778,894.40
  6. Step 6: Final answer
    x = 326,954.22

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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.