Finding the Fourth Proportional to 1,645,859.62, 2,271,194.92 and 920,567.21
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Solution
The fourth proportional to 1,645,859.62, 2,271,194.92 and 920,567.21 is: 1,270,331.65
Step by Step Solution
- Step 1: Write the proportion equation
1,645,859.62 : 2,271,194.92 = 920,567.21 : x - Step 2: Convert to fraction form
1,645,859.62/2,271,194.92 = 920,567.21/x - Step 3: Cross multiply
1,645,859.62x = 2,271,194.92 × 920,567.21 - Step 4: Simplify right side
1,645,859.62x = 2,090,787,572,521.08 - Step 5: Solve for x
x = 2,090,787,572,521.08/1,645,859.62 - Step 6: Final answer
x = 1,270,331.65
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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.