Finding the Fourth Proportional to 859,708.80, 1,289,563.20 and 461,128.05
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Solution
The fourth proportional to 859,708.80, 1,289,563.20 and 461,128.05 is: 691,692.08
Step by Step Solution
- Step 1: Write the proportion equation
859,708.80 : 1,289,563.20 = 461,128.05 : x - Step 2: Convert to fraction form
859,708.80/1,289,563.20 = 461,128.05/x - Step 3: Cross multiply
859,708.80x = 1,289,563.20 × 461,128.05 - Step 4: Simplify right side
859,708.80x = 594,653,763,767.76 - Step 5: Solve for x
x = 594,653,763,767.76/859,708.80 - Step 6: Final answer
x = 691,692.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.