Finding the Fourth Proportional to 498,559.74, 687,988.53 and 283,679.70
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Solution
The fourth proportional to 498,559.74, 687,988.53 and 283,679.70 is: 391,464.38
Step by Step Solution
- Step 1: Write the proportion equation
498,559.74 : 687,988.53 = 283,679.70 : x - Step 2: Convert to fraction form
498,559.74/687,988.53 = 283,679.70/x - Step 3: Cross multiply
498,559.74x = 687,988.53 × 283,679.70 - Step 4: Simplify right side
498,559.74x = 195,168,379,793.84 - Step 5: Solve for x
x = 195,168,379,793.84/498,559.74 - Step 6: Final answer
x = 391,464.38
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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.