Finding the Fourth Proportional to 949,358.21, 1,310,115.75 and 519,665.50
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Solution
The fourth proportional to 949,358.21, 1,310,115.75 and 519,665.50 is: 717,139.16
Step by Step Solution
- Step 1: Write the proportion equation
949,358.21 : 1,310,115.75 = 519,665.50 : x - Step 2: Convert to fraction form
949,358.21/1,310,115.75 = 519,665.50/x - Step 3: Cross multiply
949,358.21x = 1,310,115.75 × 519,665.50 - Step 4: Simplify right side
949,358.21x = 680,821,949,731.05 - Step 5: Solve for x
x = 680,821,949,731.05/949,358.21 - Step 6: Final answer
x = 717,139.16
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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.