Finding the Fourth Proportional to 824,690.97, 1,138,145.99 and 480,509.01
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Solution
The fourth proportional to 824,690.97, 1,138,145.99 and 480,509.01 is: 663,144.64
Step by Step Solution
- Step 1: Write the proportion equation
824,690.97 : 1,138,145.99 = 480,509.01 : x - Step 2: Convert to fraction form
824,690.97/1,138,145.99 = 480,509.01/x - Step 3: Cross multiply
824,690.97x = 1,138,145.99 × 480,509.01 - Step 4: Simplify right side
824,690.97x = 546,889,400,487.83 - Step 5: Solve for x
x = 546,889,400,487.83/824,690.97 - Step 6: Final answer
x = 663,144.64
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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.