Finding the Fourth Proportional to 644,688.11, 889,617.51 and 372,773.62
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Solution
The fourth proportional to 644,688.11, 889,617.51 and 372,773.62 is: 514,397.47
Step by Step Solution
- Step 1: Write the proportion equation
644,688.11 : 889,617.51 = 372,773.62 : x - Step 2: Convert to fraction form
644,688.11/889,617.51 = 372,773.62/x - Step 3: Cross multiply
644,688.11x = 889,617.51 × 372,773.62 - Step 4: Simplify right side
644,688.11x = 331,625,937,179.63 - Step 5: Solve for x
x = 331,625,937,179.63/644,688.11 - Step 6: Final answer
x = 514,397.47
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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.