Home / 550,413.98-824,824.13-379,460.21

Finding the Fourth Proportional to 550,413.98, 824,824.13 and 379,460.21

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Solution

The fourth proportional to 550,413.98, 824,824.13 and 379,460.21 is: 568,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,413.98 : 824,824.13 = 379,460.21 : x
  2. Step 2: Convert to fraction form
    550,413.98/824,824.13 = 379,460.21/x
  3. Step 3: Cross multiply
    550,413.98x = 824,824.13 × 379,460.21
  4. Step 4: Simplify right side
    550,413.98x = 312,987,931,561.45
  5. Step 5: Solve for x
    x = 312,987,931,561.45/550,413.98
  6. Step 6: Final answer
    x = 568,640.96

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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.