Finding the Fourth Proportional to 891,346.20, 1,336,727.70 and 330,307.80
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Solution
The fourth proportional to 891,346.20, 1,336,727.70 and 330,307.80 is: 495,353.64
Step by Step Solution
- Step 1: Write the proportion equation
891,346.20 : 1,336,727.70 = 330,307.80 : x - Step 2: Convert to fraction form
891,346.20/1,336,727.70 = 330,307.80/x - Step 3: Cross multiply
891,346.20x = 1,336,727.70 × 330,307.80 - Step 4: Simplify right side
891,346.20x = 441,531,585,786.06 - Step 5: Solve for x
x = 441,531,585,786.06/891,346.20 - Step 6: Final answer
x = 495,353.64
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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.