Finding the Fourth Proportional to 878,593.74, 1,212,130.35 and 516,029.10
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Solution
The fourth proportional to 878,593.74, 1,212,130.35 and 516,029.10 is: 711,926.92
Step by Step Solution
- Step 1: Write the proportion equation
878,593.74 : 1,212,130.35 = 516,029.10 : x - Step 2: Convert to fraction form
878,593.74/1,212,130.35 = 516,029.10/x - Step 3: Cross multiply
878,593.74x = 1,212,130.35 × 516,029.10 - Step 4: Simplify right side
878,593.74x = 625,494,533,593.19 - Step 5: Solve for x
x = 625,494,533,593.19/878,593.74 - Step 6: Final answer
x = 711,926.92
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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.