Finding the Fourth Proportional to 644,822.79, 889,784.79 and 372,849.53
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Solution
The fourth proportional to 644,822.79, 889,784.79 and 372,849.53 is: 514,491.49
Step by Step Solution
- Step 1: Write the proportion equation
644,822.79 : 889,784.79 = 372,849.53 : x - Step 2: Convert to fraction form
644,822.79/889,784.79 = 372,849.53/x - Step 3: Cross multiply
644,822.79x = 889,784.79 × 372,849.53 - Step 4: Simplify right side
644,822.79x = 331,755,836,303.73 - Step 5: Solve for x
x = 331,755,836,303.73/644,822.79 - Step 6: Final answer
x = 514,491.49
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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.