Finding the Fourth Proportional to 854,055.18, 1,178,475.75 and 486,541.98
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Solution
The fourth proportional to 854,055.18, 1,178,475.75 and 486,541.98 is: 671,359.34
Step by Step Solution
- Step 1: Write the proportion equation
854,055.18 : 1,178,475.75 = 486,541.98 : x - Step 2: Convert to fraction form
854,055.18/1,178,475.75 = 486,541.98/x - Step 3: Cross multiply
854,055.18x = 1,178,475.75 × 486,541.98 - Step 4: Simplify right side
854,055.18x = 573,377,924,786.99 - Step 5: Solve for x
x = 573,377,924,786.99/854,055.18 - Step 6: Final answer
x = 671,359.34
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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.