Finding the Fourth Proportional to 913,920.44, 1,260,813.14 and 551,142.70
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Solution
The fourth proportional to 913,920.44, 1,260,813.14 and 551,142.70 is: 760,337.47
Step by Step Solution
- Step 1: Write the proportion equation
913,920.44 : 1,260,813.14 = 551,142.70 : x - Step 2: Convert to fraction form
913,920.44/1,260,813.14 = 551,142.70/x - Step 3: Cross multiply
913,920.44x = 1,260,813.14 × 551,142.70 - Step 4: Simplify right side
913,920.44x = 694,887,958,175.08 - Step 5: Solve for x
x = 694,887,958,175.08/913,920.44 - Step 6: Final answer
x = 760,337.47
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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.