Finding the Fourth Proportional to 3,471,901.40, 5,207,852.10 and 947,811.80
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Solution
The fourth proportional to 3,471,901.40, 5,207,852.10 and 947,811.80 is: 1,421,717.70
Step by Step Solution
- Step 1: Write the proportion equation
3,471,901.40 : 5,207,852.10 = 947,811.80 : x - Step 2: Convert to fraction form
3,471,901.40/5,207,852.10 = 947,811.80/x - Step 3: Cross multiply
3,471,901.40x = 5,207,852.10 × 947,811.80 - Step 4: Simplify right side
3,471,901.40x = 4,936,063,673,034.78 - Step 5: Solve for x
x = 4,936,063,673,034.78/3,471,901.40 - Step 6: Final answer
x = 1,421,717.70
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Double scale
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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.