Finding the Fourth Proportional to 664,493.68, 917,010.84 and 362,681.20
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Solution
The fourth proportional to 664,493.68, 917,010.84 and 362,681.20 is: 500,505.27
Step by Step Solution
- Step 1: Write the proportion equation
664,493.68 : 917,010.84 = 362,681.20 : x - Step 2: Convert to fraction form
664,493.68/917,010.84 = 362,681.20/x - Step 3: Cross multiply
664,493.68x = 917,010.84 × 362,681.20 - Step 4: Simplify right side
664,493.68x = 332,582,591,864.21 - Step 5: Solve for x
x = 332,582,591,864.21/664,493.68 - Step 6: Final answer
x = 500,505.27
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1.5x scale
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.