Finding the Fourth Proportional to 561,877.09, 775,392.95 and 307,228.07
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Solution
The fourth proportional to 561,877.09, 775,392.95 and 307,228.07 is: 423,976.14
Step by Step Solution
- Step 1: Write the proportion equation
561,877.09 : 775,392.95 = 307,228.07 : x - Step 2: Convert to fraction form
561,877.09/775,392.95 = 307,228.07/x - Step 3: Cross multiply
561,877.09x = 775,392.95 × 307,228.07 - Step 4: Simplify right side
561,877.09x = 238,222,479,520.11 - Step 5: Solve for x
x = 238,222,479,520.11/561,877.09 - Step 6: Final answer
x = 423,976.14
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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.