Finding the Fourth Proportional to 756,043.47, 1,133,933.99 and 257,407.47
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Solution
The fourth proportional to 756,043.47, 1,133,933.99 and 257,407.47 is: 386,066.53
Step by Step Solution
- Step 1: Write the proportion equation
756,043.47 : 1,133,933.99 = 257,407.47 : x - Step 2: Convert to fraction form
756,043.47/1,133,933.99 = 257,407.47/x - Step 3: Cross multiply
756,043.47x = 1,133,933.99 × 257,407.47 - Step 4: Simplify right side
756,043.47x = 291,883,078,225.87 - Step 5: Solve for x
x = 291,883,078,225.87/756,043.47 - Step 6: Final answer
x = 386,066.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.