Finding the Fourth Proportional to 647,497.60, 971,246.40 and 513,653.20
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Solution
The fourth proportional to 647,497.60, 971,246.40 and 513,653.20 is: 770,479.80
Step by Step Solution
- Step 1: Write the proportion equation
647,497.60 : 971,246.40 = 513,653.20 : x - Step 2: Convert to fraction form
647,497.60/971,246.40 = 513,653.20/x - Step 3: Cross multiply
647,497.60x = 971,246.40 × 513,653.20 - Step 4: Simplify right side
647,497.60x = 498,883,821,348.48 - Step 5: Solve for x
x = 498,883,821,348.48/647,497.60 - Step 6: Final answer
x = 770,479.80
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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.