Finding the Fourth Proportional to 808,066.26, 1,115,139.18 and 445,503.42
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Solution
The fourth proportional to 808,066.26, 1,115,139.18 and 445,503.42 is: 614,798.99
Step by Step Solution
- Step 1: Write the proportion equation
808,066.26 : 1,115,139.18 = 445,503.42 : x - Step 2: Convert to fraction form
808,066.26/1,115,139.18 = 445,503.42/x - Step 3: Cross multiply
808,066.26x = 1,115,139.18 × 445,503.42 - Step 4: Simplify right side
808,066.26x = 496,798,318,466.00 - Step 5: Solve for x
x = 496,798,318,466.00/808,066.26 - Step 6: Final answer
x = 614,798.99
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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.