Finding the Fourth Proportional to 690,300.99, 952,606.28 and 380,197.62
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Solution
The fourth proportional to 690,300.99, 952,606.28 and 380,197.62 is: 524,667.71
Step by Step Solution
- Step 1: Write the proportion equation
690,300.99 : 952,606.28 = 380,197.62 : x - Step 2: Convert to fraction form
690,300.99/952,606.28 = 380,197.62/x - Step 3: Cross multiply
690,300.99x = 952,606.28 × 380,197.62 - Step 4: Simplify right side
690,300.99x = 362,178,640,453.05 - Step 5: Solve for x
x = 362,178,640,453.05/690,300.99 - Step 6: Final answer
x = 524,667.71
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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.