Home / 778,809.60-1,168,214.40-329,413.91

Finding the Fourth Proportional to 778,809.60, 1,168,214.40 and 329,413.91

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Solution

The fourth proportional to 778,809.60, 1,168,214.40 and 329,413.91 is: 494,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,809.60 : 1,168,214.40 = 329,413.91 : x
  2. Step 2: Convert to fraction form
    778,809.60/1,168,214.40 = 329,413.91/x
  3. Step 3: Cross multiply
    778,809.60x = 1,168,214.40 × 329,413.91
  4. Step 4: Simplify right side
    778,809.60x = 384,826,067,381.23
  5. Step 5: Solve for x
    x = 384,826,067,381.23/778,809.60
  6. Step 6: Final answer
    x = 494,120.86

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Double scale
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Similar ratio
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1.5x scale

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.