Finding the Fourth Proportional to 819,274.13, 1,130,135.24 and 512,818.52
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Solution
The fourth proportional to 819,274.13, 1,130,135.24 and 512,818.52 is: 707,399.72
Step by Step Solution
- Step 1: Write the proportion equation
819,274.13 : 1,130,135.24 = 512,818.52 : x - Step 2: Convert to fraction form
819,274.13/1,130,135.24 = 512,818.52/x - Step 3: Cross multiply
819,274.13x = 1,130,135.24 × 512,818.52 - Step 4: Simplify right side
819,274.13x = 579,554,285,284.03 - Step 5: Solve for x
x = 579,554,285,284.03/819,274.13 - Step 6: Final answer
x = 707,399.72
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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.