Finding the Fourth Proportional to 618,543.95, 853,590.07 and 346,613.99
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Solution
The fourth proportional to 618,543.95, 853,590.07 and 346,613.99 is: 478,326.98
Step by Step Solution
- Step 1: Write the proportion equation
618,543.95 : 853,590.07 = 346,613.99 : x - Step 2: Convert to fraction form
618,543.95/853,590.07 = 346,613.99/x - Step 3: Cross multiply
618,543.95x = 853,590.07 × 346,613.99 - Step 4: Simplify right side
618,543.95x = 295,866,261,254.52 - Step 5: Solve for x
x = 295,866,261,254.52/618,543.95 - Step 6: Final answer
x = 478,326.98
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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.