Finding the Fourth Proportional to 3,131,219.21, 4,696,952.86 and 1,489,502.09
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Solution
The fourth proportional to 3,131,219.21, 4,696,952.86 and 1,489,502.09 is: 2,234,312.15
Step by Step Solution
- Step 1: Write the proportion equation
3,131,219.21 : 4,696,952.86 = 1,489,502.09 : x - Step 2: Convert to fraction form
3,131,219.21/4,696,952.86 = 1,489,502.09/x - Step 3: Cross multiply
3,131,219.21x = 4,696,952.86 × 1,489,502.09 - Step 4: Simplify right side
3,131,219.21x = 6,996,121,109,620.11 - Step 5: Solve for x
x = 6,996,121,109,620.11/3,131,219.21 - Step 6: Final answer
x = 2,234,312.15
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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.