Finding the Fourth Proportional to 1,384,844.49, 1,911,404.27 and 812,069.19
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Solution
The fourth proportional to 1,384,844.49, 1,911,404.27 and 812,069.19 is: 1,120,842.47
Step by Step Solution
- Step 1: Write the proportion equation
1,384,844.49 : 1,911,404.27 = 812,069.19 : x - Step 2: Convert to fraction form
1,384,844.49/1,911,404.27 = 812,069.19/x - Step 3: Cross multiply
1,384,844.49x = 1,911,404.27 × 812,069.19 - Step 4: Simplify right side
1,384,844.49x = 1,552,192,513,241.10 - Step 5: Solve for x
x = 1,552,192,513,241.10/1,384,844.49 - Step 6: Final answer
x = 1,120,842.47
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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.