Finding the Fourth Proportional to 457,913.19, 686,902.58 and 120,950.49
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Solution
The fourth proportional to 457,913.19, 686,902.58 and 120,950.49 is: 181,434.40
Step by Step Solution
- Step 1: Write the proportion equation
457,913.19 : 686,902.58 = 120,950.49 : x - Step 2: Convert to fraction form
457,913.19/686,902.58 = 120,950.49/x - Step 3: Cross multiply
457,913.19x = 686,902.58 × 120,950.49 - Step 4: Simplify right side
457,913.19x = 83,081,203,028.51 - Step 5: Solve for x
x = 83,081,203,028.51/457,913.19 - Step 6: Final answer
x = 181,434.40
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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.