Finding the Fourth Proportional to 553,769.19, 764,201.49 and 299,120.38
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Solution
The fourth proportional to 553,769.19, 764,201.49 and 299,120.38 is: 412,786.12
Step by Step Solution
- Step 1: Write the proportion equation
553,769.19 : 764,201.49 = 299,120.38 : x - Step 2: Convert to fraction form
553,769.19/764,201.49 = 299,120.38/x - Step 3: Cross multiply
553,769.19x = 764,201.49 × 299,120.38 - Step 4: Simplify right side
553,769.19x = 228,588,237,053.16 - Step 5: Solve for x
x = 228,588,237,053.16/553,769.19 - Step 6: Final answer
x = 412,786.12
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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.