Finding the Fourth Proportional to 618,801.99, 853,998.99 and 346,865.55
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Solution
The fourth proportional to 618,801.99, 853,998.99 and 346,865.55 is: 478,703.74
Step by Step Solution
- Step 1: Write the proportion equation
618,801.99 : 853,998.99 = 346,865.55 : x - Step 2: Convert to fraction form
618,801.99/853,998.99 = 346,865.55/x - Step 3: Cross multiply
618,801.99x = 853,998.99 × 346,865.55 - Step 4: Simplify right side
618,801.99x = 296,222,829,365.80 - Step 5: Solve for x
x = 296,222,829,365.80/618,801.99 - Step 6: Final answer
x = 478,703.74
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1.5x scale
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.