Finding the Fourth Proportional to 2,109,612.36, 2,911,279.04 and 1,142,742.65
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Solution
The fourth proportional to 2,109,612.36, 2,911,279.04 and 1,142,742.65 is: 1,576,992.42
Step by Step Solution
- Step 1: Write the proportion equation
2,109,612.36 : 2,911,279.04 = 1,142,742.65 : x - Step 2: Convert to fraction form
2,109,612.36/2,911,279.04 = 1,142,742.65/x - Step 3: Cross multiply
2,109,612.36x = 2,911,279.04 × 1,142,742.65 - Step 4: Simplify right side
2,109,612.36x = 3,326,842,709,074.23 - Step 5: Solve for x
x = 3,326,842,709,074.23/2,109,612.36 - Step 6: Final answer
x = 1,576,992.42
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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.