Finding the Fourth Proportional to 887,135.40, 1,330,703.10 and 326,053.80
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Solution
The fourth proportional to 887,135.40, 1,330,703.10 and 326,053.80 is: 489,080.70
Step by Step Solution
- Step 1: Write the proportion equation
887,135.40 : 1,330,703.10 = 326,053.80 : x - Step 2: Convert to fraction form
887,135.40/1,330,703.10 = 326,053.80/x - Step 3: Cross multiply
887,135.40x = 1,330,703.10 × 326,053.80 - Step 4: Simplify right side
887,135.40x = 433,880,802,426.78 - Step 5: Solve for x
x = 433,880,802,426.78/887,135.40 - Step 6: Final answer
x = 489,080.70
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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.