Finding the Fourth Proportional to 328,649.58, 452,439.81 and 313,603.02
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Solution
The fourth proportional to 328,649.58, 452,439.81 and 313,603.02 is: 431,725.76
Step by Step Solution
- Step 1: Write the proportion equation
328,649.58 : 452,439.81 = 313,603.02 : x - Step 2: Convert to fraction form
328,649.58/452,439.81 = 313,603.02/x - Step 3: Cross multiply
328,649.58x = 452,439.81 × 313,603.02 - Step 4: Simplify right side
328,649.58x = 141,886,490,784.23 - Step 5: Solve for x
x = 141,886,490,784.23/328,649.58 - Step 6: Final answer
x = 431,725.76
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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.