Finding the Fourth Proportional to 618,555.06, 853,658.33 and 346,619.84
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Solution
The fourth proportional to 618,555.06, 853,658.33 and 346,619.84 is: 478,364.70
Step by Step Solution
- Step 1: Write the proportion equation
618,555.06 : 853,658.33 = 346,619.84 : x - Step 2: Convert to fraction form
618,555.06/853,658.33 = 346,619.84/x - Step 3: Cross multiply
618,555.06x = 853,658.33 × 346,619.84 - Step 4: Simplify right side
618,555.06x = 295,894,907,757.88 - Step 5: Solve for x
x = 295,894,907,757.88/618,555.06 - Step 6: Final answer
x = 478,364.70
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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.