Finding the Fourth Proportional to 1,645,657.19, 2,271,217.01 and 920,545.19
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Solution
The fourth proportional to 1,645,657.19, 2,271,217.01 and 920,545.19 is: 1,270,469.88
Step by Step Solution
- Step 1: Write the proportion equation
1,645,657.19 : 2,271,217.01 = 920,545.19 : x - Step 2: Convert to fraction form
1,645,657.19/2,271,217.01 = 920,545.19/x - Step 3: Cross multiply
1,645,657.19x = 2,271,217.01 × 920,545.19 - Step 4: Simplify right side
1,645,657.19x = 2,090,757,894,001.68 - Step 5: Solve for x
x = 2,090,757,894,001.68/1,645,657.19 - Step 6: Final answer
x = 1,270,469.88
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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.