Finding the Fourth Proportional to 1,509,620.34, 2,083,292.55 and 821,296.08
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Solution
The fourth proportional to 1,509,620.34, 2,083,292.55 and 821,296.08 is: 1,133,397.56
Step by Step Solution
- Step 1: Write the proportion equation
1,509,620.34 : 2,083,292.55 = 821,296.08 : x - Step 2: Convert to fraction form
1,509,620.34/2,083,292.55 = 821,296.08/x - Step 3: Cross multiply
1,509,620.34x = 2,083,292.55 × 821,296.08 - Step 4: Simplify right side
1,509,620.34x = 1,711,000,004,808.20 - Step 5: Solve for x
x = 1,711,000,004,808.20/1,509,620.34 - Step 6: Final answer
x = 1,133,397.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.