Finding the Fourth Proportional to 1,703,228.80, 2,556,916.80 and 861,347.20
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Solution
The fourth proportional to 1,703,228.80, 2,556,916.80 and 861,347.20 is: 1,293,069.45
Step by Step Solution
- Step 1: Write the proportion equation
1,703,228.80 : 2,556,916.80 = 861,347.20 : x - Step 2: Convert to fraction form
1,703,228.80/2,556,916.80 = 861,347.20/x - Step 3: Cross multiply
1,703,228.80x = 2,556,916.80 × 861,347.20 - Step 4: Simplify right side
1,703,228.80x = 2,202,393,126,312.96 - Step 5: Solve for x
x = 2,202,393,126,312.96/1,703,228.80 - Step 6: Final answer
x = 1,293,069.45
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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.