Finding the Fourth Proportional to 412,855.40, 619,283.10 and 349,869.80
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Solution
The fourth proportional to 412,855.40, 619,283.10 and 349,869.80 is: 524,804.70
Step by Step Solution
- Step 1: Write the proportion equation
412,855.40 : 619,283.10 = 349,869.80 : x - Step 2: Convert to fraction form
412,855.40/619,283.10 = 349,869.80/x - Step 3: Cross multiply
412,855.40x = 619,283.10 × 349,869.80 - Step 4: Simplify right side
412,855.40x = 216,668,454,340.38 - Step 5: Solve for x
x = 216,668,454,340.38/412,855.40 - Step 6: Final answer
x = 524,804.70
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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.