Finding the Fourth Proportional to 647,604.60, 971,115.30 and 292,435.80
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Solution
The fourth proportional to 647,604.60, 971,115.30 and 292,435.80 is: 438,522.02
Step by Step Solution
- Step 1: Write the proportion equation
647,604.60 : 971,115.30 = 292,435.80 : x - Step 2: Convert to fraction form
647,604.60/971,115.30 = 292,435.80/x - Step 3: Cross multiply
647,604.60x = 971,115.30 × 292,435.80 - Step 4: Simplify right side
647,604.60x = 283,988,879,647.74 - Step 5: Solve for x
x = 283,988,879,647.74/647,604.60 - Step 6: Final answer
x = 438,522.02
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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.