Finding the Fourth Proportional to 719,520.84, 992,922.98 and 392,822.70
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Solution
The fourth proportional to 719,520.84, 992,922.98 and 392,822.70 is: 542,086.71
Step by Step Solution
- Step 1: Write the proportion equation
719,520.84 : 992,922.98 = 392,822.70 : x - Step 2: Convert to fraction form
719,520.84/992,922.98 = 392,822.70/x - Step 3: Cross multiply
719,520.84x = 992,922.98 × 392,822.70 - Step 4: Simplify right side
719,520.84x = 390,042,685,895.65 - Step 5: Solve for x
x = 390,042,685,895.65/719,520.84 - Step 6: Final answer
x = 542,086.71
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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.