Finding the Fourth Proportional to 1,645,763.28, 2,271,341.70 and 920,794.68
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Solution
The fourth proportional to 1,645,763.28, 2,271,341.70 and 920,794.68 is: 1,270,802.05
Step by Step Solution
- Step 1: Write the proportion equation
1,645,763.28 : 2,271,341.70 = 920,794.68 : x - Step 2: Convert to fraction form
1,645,763.28/2,271,341.70 = 920,794.68/x - Step 3: Cross multiply
1,645,763.28x = 2,271,341.70 × 920,794.68 - Step 4: Simplify right side
1,645,763.28x = 2,091,439,353,822.16 - Step 5: Solve for x
x = 2,091,439,353,822.16/1,645,763.28 - Step 6: Final answer
x = 1,270,802.05
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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.