Finding the Fourth Proportional to 1,486,415.64, 2,229,708.24 and 421,374
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Solution
The fourth proportional to 1,486,415.64, 2,229,708.24 and 421,374 is: 632,085.03
Step by Step Solution
- Step 1: Write the proportion equation
1,486,415.64 : 2,229,708.24 = 421,374 : x - Step 2: Convert to fraction form
1,486,415.64/2,229,708.24 = 421,374/x - Step 3: Cross multiply
1,486,415.64x = 2,229,708.24 × 421,374 - Step 4: Simplify right side
1,486,415.64x = 939,541,079,921.76 - Step 5: Solve for x
x = 939,541,079,921.76/1,486,415.64 - Step 6: Final answer
x = 632,085.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.