Finding the Fourth Proportional to 1,645,659.18, 2,271,219.75 and 920,547.18
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Solution
The fourth proportional to 1,645,659.18, 2,271,219.75 and 920,547.18 is: 1,270,472.62
Step by Step Solution
- Step 1: Write the proportion equation
1,645,659.18 : 2,271,219.75 = 920,547.18 : x - Step 2: Convert to fraction form
1,645,659.18/2,271,219.75 = 920,547.18/x - Step 3: Cross multiply
1,645,659.18x = 2,271,219.75 × 920,547.18 - Step 4: Simplify right side
1,645,659.18x = 2,090,764,936,022.81 - Step 5: Solve for x
x = 2,090,764,936,022.81/1,645,659.18 - Step 6: Final answer
x = 1,270,472.62
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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.