Finding the Fourth Proportional to 1,420,414.10, 2,130,621.15 and 942,117.20
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Solution
The fourth proportional to 1,420,414.10, 2,130,621.15 and 942,117.20 is: 1,413,175.80
Step by Step Solution
- Step 1: Write the proportion equation
1,420,414.10 : 2,130,621.15 = 942,117.20 : x - Step 2: Convert to fraction form
1,420,414.10/2,130,621.15 = 942,117.20/x - Step 3: Cross multiply
1,420,414.10x = 2,130,621.15 × 942,117.20 - Step 4: Simplify right side
1,420,414.10x = 2,007,294,832,098.78 - Step 5: Solve for x
x = 2,007,294,832,098.78/1,420,414.10 - Step 6: Final answer
x = 1,413,175.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.