Finding the Fourth Proportional to 859,711.70, 1,289,567.55 and 741,613.70
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Solution
The fourth proportional to 859,711.70, 1,289,567.55 and 741,613.70 is: 1,112,420.55
Step by Step Solution
- Step 1: Write the proportion equation
859,711.70 : 1,289,567.55 = 741,613.70 : x - Step 2: Convert to fraction form
859,711.70/1,289,567.55 = 741,613.70/x - Step 3: Cross multiply
859,711.70x = 1,289,567.55 × 741,613.70 - Step 4: Simplify right side
859,711.70x = 956,360,962,155.44 - Step 5: Solve for x
x = 956,360,962,155.44/859,711.70 - Step 6: Final answer
x = 1,112,420.55
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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.