Finding the Fourth Proportional to 870,890.09, 1,201,787.42 and 483,730.61
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Solution
The fourth proportional to 870,890.09, 1,201,787.42 and 483,730.61 is: 667,525.52
Step by Step Solution
- Step 1: Write the proportion equation
870,890.09 : 1,201,787.42 = 483,730.61 : x - Step 2: Convert to fraction form
870,890.09/1,201,787.42 = 483,730.61/x - Step 3: Cross multiply
870,890.09x = 1,201,787.42 × 483,730.61 - Step 4: Simplify right side
870,890.09x = 581,341,361,766.93 - Step 5: Solve for x
x = 581,341,361,766.93/870,890.09 - Step 6: Final answer
x = 667,525.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.