Finding the Fourth Proportional to 754,015.84, 1,129,496.10 and 348,631.92
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Solution
The fourth proportional to 754,015.84, 1,129,496.10 and 348,631.92 is: 522,241.54
Step by Step Solution
- Step 1: Write the proportion equation
754,015.84 : 1,129,496.10 = 348,631.92 : x - Step 2: Convert to fraction form
754,015.84/1,129,496.10 = 348,631.92/x - Step 3: Cross multiply
754,015.84x = 1,129,496.10 × 348,631.92 - Step 4: Simplify right side
754,015.84x = 393,778,393,975.51 - Step 5: Solve for x
x = 393,778,393,975.51/754,015.84 - Step 6: Final answer
x = 522,241.54
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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.