Finding the Fourth Proportional to 791,223.41, 1,091,888.76 and 428,649.79
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Solution
The fourth proportional to 791,223.41, 1,091,888.76 and 428,649.79 is: 591,536.96
Step by Step Solution
- Step 1: Write the proportion equation
791,223.41 : 1,091,888.76 = 428,649.79 : x - Step 2: Convert to fraction form
791,223.41/1,091,888.76 = 428,649.79/x - Step 3: Cross multiply
791,223.41x = 1,091,888.76 × 428,649.79 - Step 4: Simplify right side
791,223.41x = 468,037,887,677.36 - Step 5: Solve for x
x = 468,037,887,677.36/791,223.41 - Step 6: Final answer
x = 591,536.96
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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.