Finding the Fourth Proportional to 346,317.40, 519,476.10 and 306,659.80
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Solution
The fourth proportional to 346,317.40, 519,476.10 and 306,659.80 is: 459,989.70
Step by Step Solution
- Step 1: Write the proportion equation
346,317.40 : 519,476.10 = 306,659.80 : x - Step 2: Convert to fraction form
346,317.40/519,476.10 = 306,659.80/x - Step 3: Cross multiply
346,317.40x = 519,476.10 × 306,659.80 - Step 4: Simplify right side
346,317.40x = 159,302,436,930.78 - Step 5: Solve for x
x = 159,302,436,930.78/346,317.40 - Step 6: Final answer
x = 459,989.70
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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.