Finding the Fourth Proportional to 514,395.92, 709,846.80 and 288,030.08
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Solution
The fourth proportional to 514,395.92, 709,846.80 and 288,030.08 is: 397,470.55
Step by Step Solution
- Step 1: Write the proportion equation
514,395.92 : 709,846.80 = 288,030.08 : x - Step 2: Convert to fraction form
514,395.92/709,846.80 = 288,030.08/x - Step 3: Cross multiply
514,395.92x = 709,846.80 × 288,030.08 - Step 4: Simplify right side
514,395.92x = 204,457,230,591.74 - Step 5: Solve for x
x = 204,457,230,591.74/514,395.92 - Step 6: Final answer
x = 397,470.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.