Finding the Fourth Proportional to 805,331.07, 1,111,357.58 and 442,761.09
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Solution
The fourth proportional to 805,331.07, 1,111,357.58 and 442,761.09 is: 611,010.69
Step by Step Solution
- Step 1: Write the proportion equation
805,331.07 : 1,111,357.58 = 442,761.09 : x - Step 2: Convert to fraction form
805,331.07/1,111,357.58 = 442,761.09/x - Step 3: Cross multiply
805,331.07x = 1,111,357.58 × 442,761.09 - Step 4: Simplify right side
805,331.07x = 492,065,893,500.56 - Step 5: Solve for x
x = 492,065,893,500.56/805,331.07 - Step 6: Final answer
x = 611,010.69
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1.5x scale
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.