Finding the Fourth Proportional to 861,347.50, 1,188,659.55 and 479,464.49
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Solution
The fourth proportional to 861,347.50, 1,188,659.55 and 479,464.49 is: 661,661.00
Step by Step Solution
- Step 1: Write the proportion equation
861,347.50 : 1,188,659.55 = 479,464.49 : x - Step 2: Convert to fraction form
861,347.50/1,188,659.55 = 479,464.49/x - Step 3: Cross multiply
861,347.50x = 1,188,659.55 × 479,464.49 - Step 4: Simplify right side
861,347.50x = 569,920,047,896.03 - Step 5: Solve for x
x = 569,920,047,896.03/861,347.50 - Step 6: Final answer
x = 661,661.00
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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.