Finding the Fourth Proportional to 647,811.60, 971,425.80 and 292,642.80
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Solution
The fourth proportional to 647,811.60, 971,425.80 and 292,642.80 is: 438,832.47
Step by Step Solution
- Step 1: Write the proportion equation
647,811.60 : 971,425.80 = 292,642.80 : x - Step 2: Convert to fraction form
647,811.60/971,425.80 = 292,642.80/x - Step 3: Cross multiply
647,811.60x = 971,425.80 × 292,642.80 - Step 4: Simplify right side
647,811.60x = 284,280,766,104.24 - Step 5: Solve for x
x = 284,280,766,104.24/647,811.60 - Step 6: Final answer
x = 438,832.47
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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.