Finding the Fourth Proportional to 808,085.83, 1,115,158.09 and 463,943.96
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Solution
The fourth proportional to 808,085.83, 1,115,158.09 and 463,943.96 is: 640,242.45
Step by Step Solution
- Step 1: Write the proportion equation
808,085.83 : 1,115,158.09 = 463,943.96 : x - Step 2: Convert to fraction form
808,085.83/1,115,158.09 = 463,943.96/x - Step 3: Cross multiply
808,085.83x = 1,115,158.09 × 463,943.96 - Step 4: Simplify right side
808,085.83x = 517,370,856,464.64 - Step 5: Solve for x
x = 517,370,856,464.64/808,085.83 - Step 6: Final answer
x = 640,242.45
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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.