Finding the Fourth Proportional to 879,394.19, 1,319,371.51 and 393,001.10
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Solution
The fourth proportional to 879,394.19, 1,319,371.51 and 393,001.10 is: 589,626.88
Step by Step Solution
- Step 1: Write the proportion equation
879,394.19 : 1,319,371.51 = 393,001.10 : x - Step 2: Convert to fraction form
879,394.19/1,319,371.51 = 393,001.10/x - Step 3: Cross multiply
879,394.19x = 1,319,371.51 × 393,001.10 - Step 4: Simplify right side
879,394.19x = 518,514,453,949.14 - Step 5: Solve for x
x = 518,514,453,949.14/879,394.19 - Step 6: Final answer
x = 589,626.88
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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.