Finding the Fourth Proportional to 991,197.30, 1,367,767.32 and 549,686.05
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Solution
The fourth proportional to 991,197.30, 1,367,767.32 and 549,686.05 is: 758,519.63
Step by Step Solution
- Step 1: Write the proportion equation
991,197.30 : 1,367,767.32 = 549,686.05 : x - Step 2: Convert to fraction form
991,197.30/1,367,767.32 = 549,686.05/x - Step 3: Cross multiply
991,197.30x = 1,367,767.32 × 549,686.05 - Step 4: Simplify right side
991,197.30x = 751,842,609,969.15 - Step 5: Solve for x
x = 751,842,609,969.15/991,197.30 - Step 6: Final answer
x = 758,519.63
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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.