Finding the Fourth Proportional to 853,700.10, 1,178,173.35 and 486,192.87
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Solution
The fourth proportional to 853,700.10, 1,178,173.35 and 486,192.87 is: 670,984.44
Step by Step Solution
- Step 1: Write the proportion equation
853,700.10 : 1,178,173.35 = 486,192.87 : x - Step 2: Convert to fraction form
853,700.10/1,178,173.35 = 486,192.87/x - Step 3: Cross multiply
853,700.10x = 1,178,173.35 × 486,192.87 - Step 4: Simplify right side
853,700.10x = 572,819,482,394.02 - Step 5: Solve for x
x = 572,819,482,394.02/853,700.10 - Step 6: Final answer
x = 670,984.44
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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.