Home / 448,413.26-618,460.37-287,283.30

Finding the Fourth Proportional to 448,413.26, 618,460.37 and 287,283.30

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Solution

The fourth proportional to 448,413.26, 618,460.37 and 287,283.30 is: 396,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,413.26 : 618,460.37 = 287,283.30 : x
  2. Step 2: Convert to fraction form
    448,413.26/618,460.37 = 287,283.30/x
  3. Step 3: Cross multiply
    448,413.26x = 618,460.37 × 287,283.30
  4. Step 4: Simplify right side
    448,413.26x = 177,673,336,012.82
  5. Step 5: Solve for x
    x = 177,673,336,012.82/448,413.26
  6. Step 6: Final answer
    x = 396,226.77

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1.5x scale

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.