Finding the Fourth Proportional to 634,574.71, 875,725.00 and 389,436.73
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Solution
The fourth proportional to 634,574.71, 875,725.00 and 389,436.73 is: 537,429.99
Step by Step Solution
- Step 1: Write the proportion equation
634,574.71 : 875,725.00 = 389,436.73 : x - Step 2: Convert to fraction form
634,574.71/875,725.00 = 389,436.73/x - Step 3: Cross multiply
634,574.71x = 875,725.00 × 389,436.73 - Step 4: Simplify right side
634,574.71x = 341,039,478,894.03 - Step 5: Solve for x
x = 341,039,478,894.03/634,574.71 - Step 6: Final answer
x = 537,429.99
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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.