Home / 685,332.80-1,027,999.20-448,942.40

Finding the Fourth Proportional to 685,332.80, 1,027,999.20 and 448,942.40

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Solution

The fourth proportional to 685,332.80, 1,027,999.20 and 448,942.40 is: 673,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,332.80 : 1,027,999.20 = 448,942.40 : x
  2. Step 2: Convert to fraction form
    685,332.80/1,027,999.20 = 448,942.40/x
  3. Step 3: Cross multiply
    685,332.80x = 1,027,999.20 × 448,942.40
  4. Step 4: Simplify right side
    685,332.80x = 461,512,428,046.08
  5. Step 5: Solve for x
    x = 461,512,428,046.08/685,332.80
  6. Step 6: Final answer
    x = 673,413.60

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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.