Finding the Fourth Proportional to 1,645,895.28, 2,272,623.96 and 1,263,316.08
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Solution
The fourth proportional to 1,645,895.28, 2,272,623.96 and 1,263,316.08 is: 1,744,365.17
Step by Step Solution
- Step 1: Write the proportion equation
1,645,895.28 : 2,272,623.96 = 1,263,316.08 : x - Step 2: Convert to fraction form
1,645,895.28/2,272,623.96 = 1,263,316.08/x - Step 3: Cross multiply
1,645,895.28x = 2,272,623.96 × 1,263,316.08 - Step 4: Simplify right side
1,645,895.28x = 2,871,042,392,461.28 - Step 5: Solve for x
x = 2,871,042,392,461.28/1,645,895.28 - Step 6: Final answer
x = 1,744,365.17
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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.