Finding the Fourth Proportional to 838,292.52, 1,154,639.97 and 644,329.32
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Solution
The fourth proportional to 838,292.52, 1,154,639.97 and 644,329.32 is: 887,480.65
Step by Step Solution
- Step 1: Write the proportion equation
838,292.52 : 1,154,639.97 = 644,329.32 : x - Step 2: Convert to fraction form
838,292.52/1,154,639.97 = 644,329.32/x - Step 3: Cross multiply
838,292.52x = 1,154,639.97 × 644,329.32 - Step 4: Simplify right side
838,292.52x = 743,968,386,714.92 - Step 5: Solve for x
x = 743,968,386,714.92/838,292.52 - Step 6: Final answer
x = 887,480.65
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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.