Finding the Fourth Proportional to 979,393.42, 1,351,694.80 and 549,697.06
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Solution
The fourth proportional to 979,393.42, 1,351,694.80 and 549,697.06 is: 758,655.96
Step by Step Solution
- Step 1: Write the proportion equation
979,393.42 : 1,351,694.80 = 549,697.06 : x - Step 2: Convert to fraction form
979,393.42/1,351,694.80 = 549,697.06/x - Step 3: Cross multiply
979,393.42x = 1,351,694.80 × 549,697.06 - Step 4: Simplify right side
979,393.42x = 743,022,657,577.29 - Step 5: Solve for x
x = 743,022,657,577.29/979,393.42 - Step 6: Final answer
x = 758,655.96
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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.