Home / 860,838.70-1,291,208.23-328,413.55

Finding the Fourth Proportional to 860,838.70, 1,291,208.23 and 328,413.55

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Solution

The fourth proportional to 860,838.70, 1,291,208.23 and 328,413.55 is: 492,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,838.70 : 1,291,208.23 = 328,413.55 : x
  2. Step 2: Convert to fraction form
    860,838.70/1,291,208.23 = 328,413.55/x
  3. Step 3: Cross multiply
    860,838.70x = 1,291,208.23 × 328,413.55
  4. Step 4: Simplify right side
    860,838.70x = 424,050,278,603.52
  5. Step 5: Solve for x
    x = 424,050,278,603.52/860,838.70
  6. Step 6: Final answer
    x = 492,601.32

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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.