Finding the Fourth Proportional to 1,645,861.62, 2,271,197.68 and 920,569.21
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Solution
The fourth proportional to 1,645,861.62, 2,271,197.68 and 920,569.21 is: 1,270,334.41
Step by Step Solution
- Step 1: Write the proportion equation
1,645,861.62 : 2,271,197.68 = 920,569.21 : x - Step 2: Convert to fraction form
1,645,861.62/2,271,197.68 = 920,569.21/x - Step 3: Cross multiply
1,645,861.62x = 2,271,197.68 × 920,569.21 - Step 4: Simplify right side
1,645,861.62x = 2,090,794,654,031.43 - Step 5: Solve for x
x = 2,090,794,654,031.43/1,645,861.62 - Step 6: Final answer
x = 1,270,334.41
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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.