Finding the Fourth Proportional to 620,658.42, 856,509.39 and 348,726.13
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Solution
The fourth proportional to 620,658.42, 856,509.39 and 348,726.13 is: 481,242.49
Step by Step Solution
- Step 1: Write the proportion equation
620,658.42 : 856,509.39 = 348,726.13 : x - Step 2: Convert to fraction form
620,658.42/856,509.39 = 348,726.13/x - Step 3: Cross multiply
620,658.42x = 856,509.39 × 348,726.13 - Step 4: Simplify right side
620,658.42x = 298,687,202,742.09 - Step 5: Solve for x
x = 298,687,202,742.09/620,658.42 - Step 6: Final answer
x = 481,242.49
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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.