Home / 871,381.80-1,307,072.70-731,413.80

Finding the Fourth Proportional to 871,381.80, 1,307,072.70 and 731,413.80

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Solution

The fourth proportional to 871,381.80, 1,307,072.70 and 731,413.80 is: 1,097,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,381.80 : 1,307,072.70 = 731,413.80 : x
  2. Step 2: Convert to fraction form
    871,381.80/1,307,072.70 = 731,413.80/x
  3. Step 3: Cross multiply
    871,381.80x = 1,307,072.70 × 731,413.80
  4. Step 4: Simplify right side
    871,381.80x = 956,011,010,383.26
  5. Step 5: Solve for x
    x = 956,011,010,383.26/871,381.80
  6. Step 6: Final answer
    x = 1,097,120.70

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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.