Finding the Fourth Proportional to 1,097,670.40, 1,646,505.60 and 720,971.80
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Solution
The fourth proportional to 1,097,670.40, 1,646,505.60 and 720,971.80 is: 1,081,457.70
Step by Step Solution
- Step 1: Write the proportion equation
1,097,670.40 : 1,646,505.60 = 720,971.80 : x - Step 2: Convert to fraction form
1,097,670.40/1,646,505.60 = 720,971.80/x - Step 3: Cross multiply
1,097,670.40x = 1,646,505.60 × 720,971.80 - Step 4: Simplify right side
1,097,670.40x = 1,187,084,106,142.08 - Step 5: Solve for x
x = 1,187,084,106,142.08/1,097,670.40 - Step 6: Final answer
x = 1,081,457.70
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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.