Finding the Fourth Proportional to 1,918,912.40, 2,648,140.40 and 1,059,526.97
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Solution
The fourth proportional to 1,918,912.40, 2,648,140.40 and 1,059,526.97 is: 1,462,170.02
Step by Step Solution
- Step 1: Write the proportion equation
1,918,912.40 : 2,648,140.40 = 1,059,526.97 : x - Step 2: Convert to fraction form
1,918,912.40/2,648,140.40 = 1,059,526.97/x - Step 3: Cross multiply
1,918,912.40x = 2,648,140.40 × 1,059,526.97 - Step 4: Simplify right side
1,918,912.40x = 2,805,776,174,146.59 - Step 5: Solve for x
x = 2,805,776,174,146.59/1,918,912.40 - Step 6: Final answer
x = 1,462,170.02
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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.