Home / 1,247,861.40-1,871,792.06-406,413.14

Finding the Fourth Proportional to 1,247,861.40, 1,871,792.06 and 406,413.14

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Solution

The fourth proportional to 1,247,861.40, 1,871,792.06 and 406,413.14 is: 609,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,861.40 : 1,871,792.06 = 406,413.14 : x
  2. Step 2: Convert to fraction form
    1,247,861.40/1,871,792.06 = 406,413.14/x
  3. Step 3: Cross multiply
    1,247,861.40x = 1,871,792.06 × 406,413.14
  4. Step 4: Simplify right side
    1,247,861.40x = 760,720,888,531.67
  5. Step 5: Solve for x
    x = 760,720,888,531.67/1,247,861.40
  6. Step 6: Final answer
    x = 609,619.70

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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.