Finding the Fourth Proportional to 647,681.60, 971,230.80 and 292,512.80
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Solution
The fourth proportional to 647,681.60, 971,230.80 and 292,512.80 is: 438,637.50
Step by Step Solution
- Step 1: Write the proportion equation
647,681.60 : 971,230.80 = 292,512.80 : x - Step 2: Convert to fraction form
647,681.60/971,230.80 = 292,512.80/x - Step 3: Cross multiply
647,681.60x = 971,230.80 × 292,512.80 - Step 4: Simplify right side
647,681.60x = 284,097,440,754.24 - Step 5: Solve for x
x = 284,097,440,754.24/647,681.60 - Step 6: Final answer
x = 438,637.50
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1.5x scale
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.