Finding the Fourth Proportional to 2,345,261.10, 3,236,515.12 and 1,312,743.20
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Solution
The fourth proportional to 2,345,261.10, 3,236,515.12 and 1,312,743.20 is: 1,811,616.29
Step by Step Solution
- Step 1: Write the proportion equation
2,345,261.10 : 3,236,515.12 = 1,312,743.20 : x - Step 2: Convert to fraction form
2,345,261.10/3,236,515.12 = 1,312,743.20/x - Step 3: Cross multiply
2,345,261.10x = 3,236,515.12 × 1,312,743.20 - Step 4: Simplify right side
2,345,261.10x = 4,248,713,215,477.18 - Step 5: Solve for x
x = 4,248,713,215,477.18/2,345,261.10 - Step 6: Final answer
x = 1,811,616.29
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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.