Finding the Fourth Proportional to 1,330,809.12, 1,996,785.54 and 432,526.14
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Solution
The fourth proportional to 1,330,809.12, 1,996,785.54 and 432,526.14 is: 648,975.07
Step by Step Solution
- Step 1: Write the proportion equation
1,330,809.12 : 1,996,785.54 = 432,526.14 : x - Step 2: Convert to fraction form
1,330,809.12/1,996,785.54 = 432,526.14/x - Step 3: Cross multiply
1,330,809.12x = 1,996,785.54 × 432,526.14 - Step 4: Simplify right side
1,330,809.12x = 863,661,942,024.02 - Step 5: Solve for x
x = 863,661,942,024.02/1,330,809.12 - Step 6: Final answer
x = 648,975.07
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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.