Finding the Fourth Proportional to 1,988,307.28, 2,743,769.80 and 1,128,754
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Solution
The fourth proportional to 1,988,307.28, 2,743,769.80 and 1,128,754 is: 1,557,627.02
Step by Step Solution
- Step 1: Write the proportion equation
1,988,307.28 : 2,743,769.80 = 1,128,754 : x - Step 2: Convert to fraction form
1,988,307.28/2,743,769.80 = 1,128,754/x - Step 3: Cross multiply
1,988,307.28x = 2,743,769.80 × 1,128,754 - Step 4: Simplify right side
1,988,307.28x = 3,097,041,136,829.20 - Step 5: Solve for x
x = 3,097,041,136,829.20/1,988,307.28 - Step 6: Final answer
x = 1,557,627.02
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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.