Finding the Fourth Proportional to 1,385,845.58, 2,078,773.18 and 426,294.70
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Solution
The fourth proportional to 1,385,845.58, 2,078,773.18 and 426,294.70 is: 639,443.53
Step by Step Solution
- Step 1: Write the proportion equation
1,385,845.58 : 2,078,773.18 = 426,294.70 : x - Step 2: Convert to fraction form
1,385,845.58/2,078,773.18 = 426,294.70/x - Step 3: Cross multiply
1,385,845.58x = 2,078,773.18 × 426,294.70 - Step 4: Simplify right side
1,385,845.58x = 886,169,989,136.15 - Step 5: Solve for x
x = 886,169,989,136.15/1,385,845.58 - Step 6: Final answer
x = 639,443.53
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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.