Finding the Fourth Proportional to 492,329.44, 679,641.62 and 288,352.20
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Solution
The fourth proportional to 492,329.44, 679,641.62 and 288,352.20 is: 398,058.99
Step by Step Solution
- Step 1: Write the proportion equation
492,329.44 : 679,641.62 = 288,352.20 : x - Step 2: Convert to fraction form
492,329.44/679,641.62 = 288,352.20/x - Step 3: Cross multiply
492,329.44x = 679,641.62 × 288,352.20 - Step 4: Simplify right side
492,329.44x = 195,976,156,338.56 - Step 5: Solve for x
x = 195,976,156,338.56/492,329.44 - Step 6: Final answer
x = 398,058.99
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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.