Finding the Fourth Proportional to 936,138.77, 1,291,867.13 and 506,415.14
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Solution
The fourth proportional to 936,138.77, 1,291,867.13 and 506,415.14 is: 698,850.53
Step by Step Solution
- Step 1: Write the proportion equation
936,138.77 : 1,291,867.13 = 506,415.14 : x - Step 2: Convert to fraction form
936,138.77/1,291,867.13 = 506,415.14/x - Step 3: Cross multiply
936,138.77x = 1,291,867.13 × 506,415.14 - Step 4: Simplify right side
936,138.77x = 654,221,070,302.97 - Step 5: Solve for x
x = 654,221,070,302.97/936,138.77 - Step 6: Final answer
x = 698,850.53
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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.