Finding the Fourth Proportional to 873,350.10, 1,205,137.44 and 491,368.68
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Solution
The fourth proportional to 873,350.10, 1,205,137.44 and 491,368.68 is: 678,040.56
Step by Step Solution
- Step 1: Write the proportion equation
873,350.10 : 1,205,137.44 = 491,368.68 : x - Step 2: Convert to fraction form
873,350.10/1,205,137.44 = 491,368.68/x - Step 3: Cross multiply
873,350.10x = 1,205,137.44 × 491,368.68 - Step 4: Simplify right side
873,350.10x = 592,166,793,111.38 - Step 5: Solve for x
x = 592,166,793,111.38/873,350.10 - Step 6: Final answer
x = 678,040.56
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Double scale
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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.