Finding the Fourth Proportional to 940,115.20, 1,297,359.84 and 510,395.08
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Solution
The fourth proportional to 940,115.20, 1,297,359.84 and 510,395.08 is: 704,345.68
Step by Step Solution
- Step 1: Write the proportion equation
940,115.20 : 1,297,359.84 = 510,395.08 : x - Step 2: Convert to fraction form
940,115.20/1,297,359.84 = 510,395.08/x - Step 3: Cross multiply
940,115.20x = 1,297,359.84 × 510,395.08 - Step 4: Simplify right side
940,115.20x = 662,166,079,325.59 - Step 5: Solve for x
x = 662,166,079,325.59/940,115.20 - Step 6: Final answer
x = 704,345.68
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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.