Finding the Fourth Proportional to 398,423.23, 597,810.84 and 208,838.23
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Solution
The fourth proportional to 398,423.23, 597,810.84 and 208,838.23 is: 313,349.59
Step by Step Solution
- Step 1: Write the proportion equation
398,423.23 : 597,810.84 = 208,838.23 : x - Step 2: Convert to fraction form
398,423.23/597,810.84 = 208,838.23/x - Step 3: Cross multiply
398,423.23x = 597,810.84 × 208,838.23 - Step 4: Simplify right side
398,423.23x = 124,845,754,711.36 - Step 5: Solve for x
x = 124,845,754,711.36/398,423.23 - Step 6: Final answer
x = 313,349.59
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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.