Finding the Fourth Proportional to 1,210,825.19, 1,670,918.34 and 667,011.84
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Solution
The fourth proportional to 1,210,825.19, 1,670,918.34 and 667,011.84 is: 920,465.09
Step by Step Solution
- Step 1: Write the proportion equation
1,210,825.19 : 1,670,918.34 = 667,011.84 : x - Step 2: Convert to fraction form
1,210,825.19/1,670,918.34 = 667,011.84/x - Step 3: Cross multiply
1,210,825.19x = 1,670,918.34 × 667,011.84 - Step 4: Simplify right side
1,210,825.19x = 1,114,522,316,453.15 - Step 5: Solve for x
x = 1,114,522,316,453.15/1,210,825.19 - Step 6: Final answer
x = 920,465.09
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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.