Finding the Fourth Proportional to 859,619.70, 1,289,429.55 and 260,551.19
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Solution
The fourth proportional to 859,619.70, 1,289,429.55 and 260,551.19 is: 390,826.79
Step by Step Solution
- Step 1: Write the proportion equation
859,619.70 : 1,289,429.55 = 260,551.19 : x - Step 2: Convert to fraction form
859,619.70/1,289,429.55 = 260,551.19/x - Step 3: Cross multiply
859,619.70x = 1,289,429.55 × 260,551.19 - Step 4: Simplify right side
859,619.70x = 335,962,406,897.24 - Step 5: Solve for x
x = 335,962,406,897.24/859,619.70 - Step 6: Final answer
x = 390,826.79
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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.