Finding the Fourth Proportional to 1,293,119.98, 1,784,560.93 and 720,160.15
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Solution
The fourth proportional to 1,293,119.98, 1,784,560.93 and 720,160.15 is: 993,851.83
Step by Step Solution
- Step 1: Write the proportion equation
1,293,119.98 : 1,784,560.93 = 720,160.15 : x - Step 2: Convert to fraction form
1,293,119.98/1,784,560.93 = 720,160.15/x - Step 3: Cross multiply
1,293,119.98x = 1,784,560.93 × 720,160.15 - Step 4: Simplify right side
1,293,119.98x = 1,285,169,658,110.13 - Step 5: Solve for x
x = 1,285,169,658,110.13/1,293,119.98 - Step 6: Final answer
x = 993,851.83
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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.