Finding the Fourth Proportional to 1,503,140.21, 2,255,083.98 and 438,191.63
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Solution
The fourth proportional to 1,503,140.21, 2,255,083.98 and 438,191.63 is: 657,396.37
Step by Step Solution
- Step 1: Write the proportion equation
1,503,140.21 : 2,255,083.98 = 438,191.63 : x - Step 2: Convert to fraction form
1,503,140.21/2,255,083.98 = 438,191.63/x - Step 3: Cross multiply
1,503,140.21x = 2,255,083.98 × 438,191.63 - Step 4: Simplify right side
1,503,140.21x = 988,158,913,707.67 - Step 5: Solve for x
x = 988,158,913,707.67/1,503,140.21 - Step 6: Final answer
x = 657,396.37
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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.