Finding the Fourth Proportional to 1,503,405.74, 2,255,440.35 and 438,531.14
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Solution
The fourth proportional to 1,503,405.74, 2,255,440.35 and 438,531.14 is: 657,893.47
Step by Step Solution
- Step 1: Write the proportion equation
1,503,405.74 : 2,255,440.35 = 438,531.14 : x - Step 2: Convert to fraction form
1,503,405.74/2,255,440.35 = 438,531.14/x - Step 3: Cross multiply
1,503,405.74x = 2,255,440.35 × 438,531.14 - Step 4: Simplify right side
1,503,405.74x = 989,080,816,610.30 - Step 5: Solve for x
x = 989,080,816,610.30/1,503,405.74 - Step 6: Final answer
x = 657,893.47
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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.