Finding the Fourth Proportional to 409,529.80, 614,294.70 and 386,201.80
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Solution
The fourth proportional to 409,529.80, 614,294.70 and 386,201.80 is: 579,302.70
Step by Step Solution
- Step 1: Write the proportion equation
409,529.80 : 614,294.70 = 386,201.80 : x - Step 2: Convert to fraction form
409,529.80/614,294.70 = 386,201.80/x - Step 3: Cross multiply
409,529.80x = 614,294.70 × 386,201.80 - Step 4: Simplify right side
409,529.80x = 237,241,718,870.46 - Step 5: Solve for x
x = 237,241,718,870.46/409,529.80 - Step 6: Final answer
x = 579,302.70
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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.