Finding the Fourth Proportional to 1,333,728.09, 1,840,544.62 and 721,880.74
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Solution
The fourth proportional to 1,333,728.09, 1,840,544.62 and 721,880.74 is: 996,195.34
Step by Step Solution
- Step 1: Write the proportion equation
1,333,728.09 : 1,840,544.62 = 721,880.74 : x - Step 2: Convert to fraction form
1,333,728.09/1,840,544.62 = 721,880.74/x - Step 3: Cross multiply
1,333,728.09x = 1,840,544.62 × 721,880.74 - Step 4: Simplify right side
1,333,728.09x = 1,328,653,712,288.62 - Step 5: Solve for x
x = 1,328,653,712,288.62/1,333,728.09 - Step 6: Final answer
x = 996,195.34
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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.