Finding the Fourth Proportional to 936,151.12, 1,291,885.73 and 506,431.13
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Solution
The fourth proportional to 936,151.12, 1,291,885.73 and 506,431.13 is: 698,873.44
Step by Step Solution
- Step 1: Write the proportion equation
936,151.12 : 1,291,885.73 = 506,431.13 : x - Step 2: Convert to fraction form
936,151.12/1,291,885.73 = 506,431.13/x - Step 3: Cross multiply
936,151.12x = 1,291,885.73 × 506,431.13 - Step 4: Simplify right side
936,151.12x = 654,251,150,074.78 - Step 5: Solve for x
x = 654,251,150,074.78/936,151.12 - Step 6: Final answer
x = 698,873.44
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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.