Finding the Fourth Proportional to 1,203,290.10, 1,660,329.81 and 686,808.18
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Solution
The fourth proportional to 1,203,290.10, 1,660,329.81 and 686,808.18 is: 947,675.12
Step by Step Solution
- Step 1: Write the proportion equation
1,203,290.10 : 1,660,329.81 = 686,808.18 : x - Step 2: Convert to fraction form
1,203,290.10/1,660,329.81 = 686,808.18/x - Step 3: Cross multiply
1,203,290.10x = 1,660,329.81 × 686,808.18 - Step 4: Simplify right side
1,203,290.10x = 1,140,328,095,005.85 - Step 5: Solve for x
x = 1,140,328,095,005.85/1,203,290.10 - Step 6: Final answer
x = 947,675.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.