Finding the Fourth Proportional to 396,478.62, 594,780.12 and 130,178.52
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Solution
The fourth proportional to 396,478.62, 594,780.12 and 130,178.52 is: 195,288.20
Step by Step Solution
- Step 1: Write the proportion equation
396,478.62 : 594,780.12 = 130,178.52 : x - Step 2: Convert to fraction form
396,478.62/594,780.12 = 130,178.52/x - Step 3: Cross multiply
396,478.62x = 594,780.12 × 130,178.52 - Step 4: Simplify right side
396,478.62x = 77,427,595,747.02 - Step 5: Solve for x
x = 77,427,595,747.02/396,478.62 - Step 6: Final answer
x = 195,288.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.