Home / 788,705.75-1,088,413.94-449,205.59

Finding the Fourth Proportional to 788,705.75, 1,088,413.94 and 449,205.59

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Solution

The fourth proportional to 788,705.75, 1,088,413.94 and 449,205.59 is: 619,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,705.75 : 1,088,413.94 = 449,205.59 : x
  2. Step 2: Convert to fraction form
    788,705.75/1,088,413.94 = 449,205.59/x
  3. Step 3: Cross multiply
    788,705.75x = 1,088,413.94 × 449,205.59
  4. Step 4: Simplify right side
    788,705.75x = 488,921,626,081.93
  5. Step 5: Solve for x
    x = 488,921,626,081.93/788,705.75
  6. Step 6: Final answer
    x = 619,903.72

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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.