Finding the Fourth Proportional to 991,468.57, 1,368,212.84 and 549,929.67
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Solution
The fourth proportional to 991,468.57, 1,368,212.84 and 549,929.67 is: 758,895.30
Step by Step Solution
- Step 1: Write the proportion equation
991,468.57 : 1,368,212.84 = 549,929.67 : x - Step 2: Convert to fraction form
991,468.57/1,368,212.84 = 549,929.67/x - Step 3: Cross multiply
991,468.57x = 1,368,212.84 × 549,929.67 - Step 4: Simplify right side
991,468.57x = 752,420,835,590.96 - Step 5: Solve for x
x = 752,420,835,590.96/991,468.57 - Step 6: Final answer
x = 758,895.30
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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.