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Finding the Fourth Proportional to 488,381.80, 731,147.10 and 348,413.80

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Solution

The fourth proportional to 488,381.80, 731,147.10 and 348,413.80 is: 521,603.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,381.80 : 731,147.10 = 348,413.80 : x
  2. Step 2: Convert to fraction form
    488,381.80/731,147.10 = 348,413.80/x
  3. Step 3: Cross multiply
    488,381.80x = 731,147.10 × 348,413.80
  4. Step 4: Simplify right side
    488,381.80x = 254,741,739,469.98
  5. Step 5: Solve for x
    x = 254,741,739,469.98/488,381.80
  6. Step 6: Final answer
    x = 521,603.67

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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.