Finding the Fourth Proportional to 664,413.20, 996,619.80 and 464,958.80
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Solution
The fourth proportional to 664,413.20, 996,619.80 and 464,958.80 is: 697,438.20
Step by Step Solution
- Step 1: Write the proportion equation
664,413.20 : 996,619.80 = 464,958.80 : x - Step 2: Convert to fraction form
664,413.20/996,619.80 = 464,958.80/x - Step 3: Cross multiply
664,413.20x = 996,619.80 × 464,958.80 - Step 4: Simplify right side
664,413.20x = 463,387,146,264.24 - Step 5: Solve for x
x = 463,387,146,264.24/664,413.20 - Step 6: Final answer
x = 697,438.20
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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.