Finding the Fourth Proportional to 497,487.62, 686,535.18 and 282,639.49
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Solution
The fourth proportional to 497,487.62, 686,535.18 and 282,639.49 is: 390,043.78
Step by Step Solution
- Step 1: Write the proportion equation
497,487.62 : 686,535.18 = 282,639.49 : x - Step 2: Convert to fraction form
497,487.62/686,535.18 = 282,639.49/x - Step 3: Cross multiply
497,487.62x = 686,535.18 × 282,639.49 - Step 4: Simplify right side
497,487.62x = 194,041,953,142.26 - Step 5: Solve for x
x = 194,041,953,142.26/497,487.62 - Step 6: Final answer
x = 390,043.78
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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.