Finding the Fourth Proportional to 1,480,581.60, 2,221,390.80 and 639,736.80
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Solution
The fourth proportional to 1,480,581.60, 2,221,390.80 and 639,736.80 is: 959,829.19
Step by Step Solution
- Step 1: Write the proportion equation
1,480,581.60 : 2,221,390.80 = 639,736.80 : x - Step 2: Convert to fraction form
1,480,581.60/2,221,390.80 = 639,736.80/x - Step 3: Cross multiply
1,480,581.60x = 2,221,390.80 × 639,736.80 - Step 4: Simplify right side
1,480,581.60x = 1,421,105,441,941.44 - Step 5: Solve for x
x = 1,421,105,441,941.44/1,480,581.60 - Step 6: Final answer
x = 959,829.19
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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.