Finding the Fourth Proportional to 618,658.36, 853,808.46 and 346,772.44
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Solution
The fourth proportional to 618,658.36, 853,808.46 and 346,772.44 is: 478,579.56
Step by Step Solution
- Step 1: Write the proportion equation
618,658.36 : 853,808.46 = 346,772.44 : x - Step 2: Convert to fraction form
618,658.36/853,808.46 = 346,772.44/x - Step 3: Cross multiply
618,658.36x = 853,808.46 × 346,772.44 - Step 4: Simplify right side
618,658.36x = 296,077,242,966.84 - Step 5: Solve for x
x = 296,077,242,966.84/618,658.36 - Step 6: Final answer
x = 478,579.56
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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.