Finding the Fourth Proportional to 1,036,682.18, 1,555,023.27 and 438,318.98
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Solution
The fourth proportional to 1,036,682.18, 1,555,023.27 and 438,318.98 is: 657,478.47
Step by Step Solution
- Step 1: Write the proportion equation
1,036,682.18 : 1,555,023.27 = 438,318.98 : x - Step 2: Convert to fraction form
1,036,682.18/1,555,023.27 = 438,318.98/x - Step 3: Cross multiply
1,036,682.18x = 1,555,023.27 × 438,318.98 - Step 4: Simplify right side
1,036,682.18x = 681,596,205,807.55 - Step 5: Solve for x
x = 681,596,205,807.55/1,036,682.18 - Step 6: Final answer
x = 657,478.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.