Finding the Fourth Proportional to 2,153,716.92, 2,972,148.84 and 1,186,881.84
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Solution
The fourth proportional to 2,153,716.92, 2,972,148.84 and 1,186,881.84 is: 1,637,907.68
Step by Step Solution
- Step 1: Write the proportion equation
2,153,716.92 : 2,972,148.84 = 1,186,881.84 : x - Step 2: Convert to fraction form
2,153,716.92/2,972,148.84 = 1,186,881.84/x - Step 3: Cross multiply
2,153,716.92x = 2,972,148.84 × 1,186,881.84 - Step 4: Simplify right side
2,153,716.92x = 3,527,589,483,973.07 - Step 5: Solve for x
x = 3,527,589,483,973.07/2,153,716.92 - Step 6: Final answer
x = 1,637,907.68
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1.5x scale
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.