Finding the Fourth Proportional to 2,267,191.20, 3,128,703.12 and 1,248,574.08
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Solution
The fourth proportional to 2,267,191.20, 3,128,703.12 and 1,248,574.08 is: 1,723,020.81
Step by Step Solution
- Step 1: Write the proportion equation
2,267,191.20 : 3,128,703.12 = 1,248,574.08 : x - Step 2: Convert to fraction form
2,267,191.20/3,128,703.12 = 1,248,574.08/x - Step 3: Cross multiply
2,267,191.20x = 3,128,703.12 × 1,248,574.08 - Step 4: Simplify right side
2,267,191.20x = 3,906,417,619,647.13 - Step 5: Solve for x
x = 3,906,417,619,647.13/2,267,191.20 - Step 6: Final answer
x = 1,723,020.81
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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.