Finding the Fourth Proportional to 3,438,279.24, 5,158,449.20 and 1,387,884.12
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Solution
The fourth proportional to 3,438,279.24, 5,158,449.20 and 1,387,884.12 is: 2,082,242.08
Step by Step Solution
- Step 1: Write the proportion equation
3,438,279.24 : 5,158,449.20 = 1,387,884.12 : x - Step 2: Convert to fraction form
3,438,279.24/5,158,449.20 = 1,387,884.12/x - Step 3: Cross multiply
3,438,279.24x = 5,158,449.20 × 1,387,884.12 - Step 4: Simplify right side
3,438,279.24x = 7,159,329,728,506.71 - Step 5: Solve for x
x = 7,159,329,728,506.71/3,438,279.24 - Step 6: Final answer
x = 2,082,242.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.