Finding the Fourth Proportional to 859,624.70, 1,289,437.05 and 268,648.70
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Solution
The fourth proportional to 859,624.70, 1,289,437.05 and 268,648.70 is: 402,973.05
Step by Step Solution
- Step 1: Write the proportion equation
859,624.70 : 1,289,437.05 = 268,648.70 : x - Step 2: Convert to fraction form
859,624.70/1,289,437.05 = 268,648.70/x - Step 3: Cross multiply
859,624.70x = 1,289,437.05 × 268,648.70 - Step 4: Simplify right side
859,624.70x = 346,405,587,214.34 - Step 5: Solve for x
x = 346,405,587,214.34/859,624.70 - Step 6: Final answer
x = 402,973.05
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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.