Finding the Fourth Proportional to 1,431,862.16, 2,147,276.56 and 420,713.65
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Solution
The fourth proportional to 1,431,862.16, 2,147,276.56 and 420,713.65 is: 630,918.66
Step by Step Solution
- Step 1: Write the proportion equation
1,431,862.16 : 2,147,276.56 = 420,713.65 : x - Step 2: Convert to fraction form
1,431,862.16/2,147,276.56 = 420,713.65/x - Step 3: Cross multiply
1,431,862.16x = 2,147,276.56 × 420,713.65 - Step 4: Simplify right side
1,431,862.16x = 903,388,550,642.98 - Step 5: Solve for x
x = 903,388,550,642.98/1,431,862.16 - Step 6: Final answer
x = 630,918.66
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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.