Finding the Fourth Proportional to 827,891.36, 1,142,404.08 and 505,679.84
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Solution
The fourth proportional to 827,891.36, 1,142,404.08 and 505,679.84 is: 697,785.65
Step by Step Solution
- Step 1: Write the proportion equation
827,891.36 : 1,142,404.08 = 505,679.84 : x - Step 2: Convert to fraction form
827,891.36/1,142,404.08 = 505,679.84/x - Step 3: Cross multiply
827,891.36x = 1,142,404.08 × 505,679.84 - Step 4: Simplify right side
827,891.36x = 577,690,712,389.75 - Step 5: Solve for x
x = 577,690,712,389.75/827,891.36 - Step 6: Final answer
x = 697,785.65
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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.