Home / 769,623.74-1,061,988.76-425,413.18

Finding the Fourth Proportional to 769,623.74, 1,061,988.76 and 425,413.18

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Solution

The fourth proportional to 769,623.74, 1,061,988.76 and 425,413.18 is: 587,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,623.74 : 1,061,988.76 = 425,413.18 : x
  2. Step 2: Convert to fraction form
    769,623.74/1,061,988.76 = 425,413.18/x
  3. Step 3: Cross multiply
    769,623.74x = 1,061,988.76 × 425,413.18
  4. Step 4: Simplify right side
    769,623.74x = 451,784,008,078.85
  5. Step 5: Solve for x
    x = 451,784,008,078.85/769,623.74
  6. Step 6: Final answer
    x = 587,019.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.