Home / 1,427,394.40-2,140,980.32-528,413.28

Finding the Fourth Proportional to 1,427,394.40, 2,140,980.32 and 528,413.28

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Solution

The fourth proportional to 1,427,394.40, 2,140,980.32 and 528,413.28 is: 792,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,394.40 : 2,140,980.32 = 528,413.28 : x
  2. Step 2: Convert to fraction form
    1,427,394.40/2,140,980.32 = 528,413.28/x
  3. Step 3: Cross multiply
    1,427,394.40x = 2,140,980.32 × 528,413.28
  4. Step 4: Simplify right side
    1,427,394.40x = 1,131,322,433,306.65
  5. Step 5: Solve for x
    x = 1,131,322,433,306.65/1,427,394.40
  6. Step 6: Final answer
    x = 792,578.72

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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.