Finding the Fourth Proportional to 459,127.68, 688,731.12 and 126,703.68
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Solution
The fourth proportional to 459,127.68, 688,731.12 and 126,703.68 is: 190,066.45
Step by Step Solution
- Step 1: Write the proportion equation
459,127.68 : 688,731.12 = 126,703.68 : x - Step 2: Convert to fraction form
459,127.68/688,731.12 = 126,703.68/x - Step 3: Cross multiply
459,127.68x = 688,731.12 × 126,703.68 - Step 4: Simplify right side
459,127.68x = 87,264,767,434.52 - Step 5: Solve for x
x = 87,264,767,434.52/459,127.68 - Step 6: Final answer
x = 190,066.45
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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.