Finding the Fourth Proportional to 1,129,864.31, 1,694,795.93 and 288,415.79
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Solution
The fourth proportional to 1,129,864.31, 1,694,795.93 and 288,415.79 is: 432,623.55
Step by Step Solution
- Step 1: Write the proportion equation
1,129,864.31 : 1,694,795.93 = 288,415.79 : x - Step 2: Convert to fraction form
1,129,864.31/1,694,795.93 = 288,415.79/x - Step 3: Cross multiply
1,129,864.31x = 1,694,795.93 × 288,415.79 - Step 4: Simplify right side
1,129,864.31x = 488,805,905,597.66 - Step 5: Solve for x
x = 488,805,905,597.66/1,129,864.31 - Step 6: Final answer
x = 432,623.55
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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.