Finding the Fourth Proportional to 947,619.12, 1,307,714.49 and 517,899.12
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Solution
The fourth proportional to 947,619.12, 1,307,714.49 and 517,899.12 is: 714,700.84
Step by Step Solution
- Step 1: Write the proportion equation
947,619.12 : 1,307,714.49 = 517,899.12 : x - Step 2: Convert to fraction form
947,619.12/1,307,714.49 = 517,899.12/x - Step 3: Cross multiply
947,619.12x = 1,307,714.49 × 517,899.12 - Step 4: Simplify right side
947,619.12x = 677,264,183,582.25 - Step 5: Solve for x
x = 677,264,183,582.25/947,619.12 - Step 6: Final answer
x = 714,700.84
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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.