Home / 778,275.72-1,166,862.28-345,755.64

Finding the Fourth Proportional to 778,275.72, 1,166,862.28 and 345,755.64

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Solution

The fourth proportional to 778,275.72, 1,166,862.28 and 345,755.64 is: 518,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,275.72 : 1,166,862.28 = 345,755.64 : x
  2. Step 2: Convert to fraction form
    778,275.72/1,166,862.28 = 345,755.64/x
  3. Step 3: Cross multiply
    778,275.72x = 1,166,862.28 × 345,755.64
  4. Step 4: Simplify right side
    778,275.72x = 403,449,214,413.26
  5. Step 5: Solve for x
    x = 403,449,214,413.26/778,275.72
  6. Step 6: Final answer
    x = 518,388.54

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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.