Finding the Fourth Proportional to 651,153.80, 898,639.80 and 393,094.19
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Solution
The fourth proportional to 651,153.80, 898,639.80 and 393,094.19 is: 542,498.69
Step by Step Solution
- Step 1: Write the proportion equation
651,153.80 : 898,639.80 = 393,094.19 : x - Step 2: Convert to fraction form
651,153.80/898,639.80 = 393,094.19/x - Step 3: Cross multiply
651,153.80x = 898,639.80 × 393,094.19 - Step 4: Simplify right side
651,153.80x = 353,250,084,282.76 - Step 5: Solve for x
x = 353,250,084,282.76/651,153.80 - Step 6: Final answer
x = 542,498.69
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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.