Finding the Fourth Proportional to 857,112.18, 1,285,709.28 and 707,074.26
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Solution
The fourth proportional to 857,112.18, 1,285,709.28 and 707,074.26 is: 1,060,645.22
Step by Step Solution
- Step 1: Write the proportion equation
857,112.18 : 1,285,709.28 = 707,074.26 : x - Step 2: Convert to fraction form
857,112.18/1,285,709.28 = 707,074.26/x - Step 3: Cross multiply
857,112.18x = 1,285,709.28 × 707,074.26 - Step 4: Simplify right side
857,112.18x = 909,091,937,731.13 - Step 5: Solve for x
x = 909,091,937,731.13/857,112.18 - Step 6: Final answer
x = 1,060,645.22
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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.