Finding the Fourth Proportional to 1,690,322.40, 2,332,631.52 and 926,374.14
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Solution
The fourth proportional to 1,690,322.40, 2,332,631.52 and 926,374.14 is: 1,278,388.97
Step by Step Solution
- Step 1: Write the proportion equation
1,690,322.40 : 2,332,631.52 = 926,374.14 : x - Step 2: Convert to fraction form
1,690,322.40/2,332,631.52 = 926,374.14/x - Step 3: Cross multiply
1,690,322.40x = 2,332,631.52 × 926,374.14 - Step 4: Simplify right side
1,690,322.40x = 2,160,889,518,276.89 - Step 5: Solve for x
x = 2,160,889,518,276.89/1,690,322.40 - Step 6: Final answer
x = 1,278,388.97
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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.