Finding the Fourth Proportional to 686,567.37, 947,519.12 and 380,739.68
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Solution
The fourth proportional to 686,567.37, 947,519.12 and 380,739.68 is: 525,451.89
Step by Step Solution
- Step 1: Write the proportion equation
686,567.37 : 947,519.12 = 380,739.68 : x - Step 2: Convert to fraction form
686,567.37/947,519.12 = 380,739.68/x - Step 3: Cross multiply
686,567.37x = 947,519.12 × 380,739.68 - Step 4: Simplify right side
686,567.37x = 360,758,119,901.39 - Step 5: Solve for x
x = 360,758,119,901.39/686,567.37 - Step 6: Final answer
x = 525,451.89
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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.