Finding the Fourth Proportional to 859,077.18, 1,185,929.45 and 496,430.21
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Solution
The fourth proportional to 859,077.18, 1,185,929.45 and 496,430.21 is: 685,306.53
Step by Step Solution
- Step 1: Write the proportion equation
859,077.18 : 1,185,929.45 = 496,430.21 : x - Step 2: Convert to fraction form
859,077.18/1,185,929.45 = 496,430.21/x - Step 3: Cross multiply
859,077.18x = 1,185,929.45 × 496,430.21 - Step 4: Simplify right side
859,077.18x = 588,731,202,706.84 - Step 5: Solve for x
x = 588,731,202,706.84/859,077.18 - Step 6: Final answer
x = 685,306.53
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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.