Finding the Fourth Proportional to 457,804.71, 686,663.33 and 280,220.31
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Solution
The fourth proportional to 457,804.71, 686,663.33 and 280,220.31 is: 420,303.69
Step by Step Solution
- Step 1: Write the proportion equation
457,804.71 : 686,663.33 = 280,220.31 : x - Step 2: Convert to fraction form
457,804.71/686,663.33 = 280,220.31/x - Step 3: Cross multiply
457,804.71x = 686,663.33 × 280,220.31 - Step 4: Simplify right side
457,804.71x = 192,417,009,797.13 - Step 5: Solve for x
x = 192,417,009,797.13/457,804.71 - Step 6: Final answer
x = 420,303.69
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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.