Home / 907,418.32-1,361,413.55-427,626.74

Finding the Fourth Proportional to 907,418.32, 1,361,413.55 and 427,626.74

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Solution

The fourth proportional to 907,418.32, 1,361,413.55 and 427,626.74 is: 641,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,418.32 : 1,361,413.55 = 427,626.74 : x
  2. Step 2: Convert to fraction form
    907,418.32/1,361,413.55 = 427,626.74/x
  3. Step 3: Cross multiply
    907,418.32x = 1,361,413.55 × 427,626.74
  4. Step 4: Simplify right side
    907,418.32x = 582,176,841,448.23
  5. Step 5: Solve for x
    x = 582,176,841,448.23/907,418.32
  6. Step 6: Final answer
    x = 641,574.93

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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.