Finding the Fourth Proportional to 1,919,041.43, 2,648,207.63 and 1,059,583.23
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Solution
The fourth proportional to 1,919,041.43, 2,648,207.63 and 1,059,583.23 is: 1,462,186.46
Step by Step Solution
- Step 1: Write the proportion equation
1,919,041.43 : 2,648,207.63 = 1,059,583.23 : x - Step 2: Convert to fraction form
1,919,041.43/2,648,207.63 = 1,059,583.23/x - Step 3: Cross multiply
1,919,041.43x = 2,648,207.63 × 1,059,583.23 - Step 4: Simplify right side
1,919,041.43x = 2,805,996,389,008.13 - Step 5: Solve for x
x = 2,805,996,389,008.13/1,919,041.43 - Step 6: Final answer
x = 1,462,186.46
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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.