Finding the Fourth Proportional to 719,472.42, 992,874.08 and 392,785.95
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Solution
The fourth proportional to 719,472.42, 992,874.08 and 392,785.95 is: 542,045.78
Step by Step Solution
- Step 1: Write the proportion equation
719,472.42 : 992,874.08 = 392,785.95 : x - Step 2: Convert to fraction form
719,472.42/992,874.08 = 392,785.95/x - Step 3: Cross multiply
719,472.42x = 992,874.08 × 392,785.95 - Step 4: Simplify right side
719,472.42x = 389,986,988,743.18 - Step 5: Solve for x
x = 389,986,988,743.18/719,472.42 - Step 6: Final answer
x = 542,045.78
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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.