Finding the Fourth Proportional to 831,277.60, 1,246,916.40 and 270,368.80
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Solution
The fourth proportional to 831,277.60, 1,246,916.40 and 270,368.80 is: 405,553.20
Step by Step Solution
- Step 1: Write the proportion equation
831,277.60 : 1,246,916.40 = 270,368.80 : x - Step 2: Convert to fraction form
831,277.60/1,246,916.40 = 270,368.80/x - Step 3: Cross multiply
831,277.60x = 1,246,916.40 × 270,368.80 - Step 4: Simplify right side
831,277.60x = 337,127,290,768.32 - Step 5: Solve for x
x = 337,127,290,768.32/831,277.60 - Step 6: Final answer
x = 405,553.20
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1.5x scale
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.