Finding the Fourth Proportional to 985,579.84, 1,360,391.05 and 577,769.95
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Solution
The fourth proportional to 985,579.84, 1,360,391.05 and 577,769.95 is: 797,493.05
Step by Step Solution
- Step 1: Write the proportion equation
985,579.84 : 1,360,391.05 = 577,769.95 : x - Step 2: Convert to fraction form
985,579.84/1,360,391.05 = 577,769.95/x - Step 3: Cross multiply
985,579.84x = 1,360,391.05 × 577,769.95 - Step 4: Simplify right side
985,579.84x = 785,993,071,361.65 - Step 5: Solve for x
x = 785,993,071,361.65/985,579.84 - Step 6: Final answer
x = 797,493.05
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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.