Finding the Fourth Proportional to 809,149.92, 1,115,995.72 and 518,789.24
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Solution
The fourth proportional to 809,149.92, 1,115,995.72 and 518,789.24 is: 715,524.47
Step by Step Solution
- Step 1: Write the proportion equation
809,149.92 : 1,115,995.72 = 518,789.24 : x - Step 2: Convert to fraction form
809,149.92/1,115,995.72 = 518,789.24/x - Step 3: Cross multiply
809,149.92x = 1,115,995.72 × 518,789.24 - Step 4: Simplify right side
809,149.92x = 578,966,571,422.05 - Step 5: Solve for x
x = 578,966,571,422.05/809,149.92 - Step 6: Final answer
x = 715,524.47
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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.