Finding the Fourth Proportional to 1,294,468.60, 1,941,702.90 and 1,239,863.80
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Solution
The fourth proportional to 1,294,468.60, 1,941,702.90 and 1,239,863.80 is: 1,859,795.70
Step by Step Solution
- Step 1: Write the proportion equation
1,294,468.60 : 1,941,702.90 = 1,239,863.80 : x - Step 2: Convert to fraction form
1,294,468.60/1,941,702.90 = 1,239,863.80/x - Step 3: Cross multiply
1,294,468.60x = 1,941,702.90 × 1,239,863.80 - Step 4: Simplify right side
1,294,468.60x = 2,407,447,136,065.02 - Step 5: Solve for x
x = 2,407,447,136,065.02/1,294,468.60 - Step 6: Final answer
x = 1,859,795.70
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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.