Finding the Fourth Proportional to 1,390,465.84, 1,917,851.44 and 1,276,112.96
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Solution
The fourth proportional to 1,390,465.84, 1,917,851.44 and 1,276,112.96 is: 1,760,126.00
Step by Step Solution
- Step 1: Write the proportion equation
1,390,465.84 : 1,917,851.44 = 1,276,112.96 : x - Step 2: Convert to fraction form
1,390,465.84/1,917,851.44 = 1,276,112.96/x - Step 3: Cross multiply
1,390,465.84x = 1,917,851.44 × 1,276,112.96 - Step 4: Simplify right side
1,390,465.84x = 2,447,395,077,938.66 - Step 5: Solve for x
x = 2,447,395,077,938.66/1,390,465.84 - Step 6: Final answer
x = 1,760,126.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.