Home / 887,970.96-1,225,413.36-505,989.60

Finding the Fourth Proportional to 887,970.96, 1,225,413.36 and 505,989.60

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Solution

The fourth proportional to 887,970.96, 1,225,413.36 and 505,989.60 is: 698,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,970.96 : 1,225,413.36 = 505,989.60 : x
  2. Step 2: Convert to fraction form
    887,970.96/1,225,413.36 = 505,989.60/x
  3. Step 3: Cross multiply
    887,970.96x = 1,225,413.36 × 505,989.60
  4. Step 4: Simplify right side
    887,970.96x = 620,046,415,861.06
  5. Step 5: Solve for x
    x = 620,046,415,861.06/887,970.96
  6. Step 6: Final answer
    x = 698,273.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.