Home / 965,999.20-1,448,998.80-611,413.60

Finding the Fourth Proportional to 965,999.20, 1,448,998.80 and 611,413.60

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Solution

The fourth proportional to 965,999.20, 1,448,998.80 and 611,413.60 is: 917,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,999.20 : 1,448,998.80 = 611,413.60 : x
  2. Step 2: Convert to fraction form
    965,999.20/1,448,998.80 = 611,413.60/x
  3. Step 3: Cross multiply
    965,999.20x = 1,448,998.80 × 611,413.60
  4. Step 4: Simplify right side
    965,999.20x = 885,937,572,703.68
  5. Step 5: Solve for x
    x = 885,937,572,703.68/965,999.20
  6. Step 6: Final answer
    x = 917,120.40

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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.