Finding the Fourth Proportional to 990,093.12, 1,485,646.11 and 471,354.52
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Solution
The fourth proportional to 990,093.12, 1,485,646.11 and 471,354.52 is: 707,272.88
Step by Step Solution
- Step 1: Write the proportion equation
990,093.12 : 1,485,646.11 = 471,354.52 : x - Step 2: Convert to fraction form
990,093.12/1,485,646.11 = 471,354.52/x - Step 3: Cross multiply
990,093.12x = 1,485,646.11 × 471,354.52 - Step 4: Simplify right side
990,093.12x = 700,266,009,068.92 - Step 5: Solve for x
x = 700,266,009,068.92/990,093.12 - Step 6: Final answer
x = 707,272.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.