Finding the Fourth Proportional to 1,322,930.18, 1,984,406.21 and 424,379.36
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Solution
The fourth proportional to 1,322,930.18, 1,984,406.21 and 424,379.36 is: 636,572.54
Step by Step Solution
- Step 1: Write the proportion equation
1,322,930.18 : 1,984,406.21 = 424,379.36 : x - Step 2: Convert to fraction form
1,322,930.18/1,984,406.21 = 424,379.36/x - Step 3: Cross multiply
1,322,930.18x = 1,984,406.21 × 424,379.36 - Step 4: Simplify right side
1,322,930.18x = 842,141,025,335.90 - Step 5: Solve for x
x = 842,141,025,335.90/1,322,930.18 - Step 6: Final answer
x = 636,572.54
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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.