Finding the Fourth Proportional to 890,235.79, 1,335,355.35 and 216,317.66
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Solution
The fourth proportional to 890,235.79, 1,335,355.35 and 216,317.66 is: 324,476.89
Step by Step Solution
- Step 1: Write the proportion equation
890,235.79 : 1,335,355.35 = 216,317.66 : x - Step 2: Convert to fraction form
890,235.79/1,335,355.35 = 216,317.66/x - Step 3: Cross multiply
890,235.79x = 1,335,355.35 × 216,317.66 - Step 4: Simplify right side
890,235.79x = 288,860,944,580.48 - Step 5: Solve for x
x = 288,860,944,580.48/890,235.79 - Step 6: Final answer
x = 324,476.89
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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.