Finding the Fourth Proportional to 1,553,135.72, 2,329,704.54 and 431,204.84
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Solution
The fourth proportional to 1,553,135.72, 2,329,704.54 and 431,204.84 is: 646,807.53
Step by Step Solution
- Step 1: Write the proportion equation
1,553,135.72 : 2,329,704.54 = 431,204.84 : x - Step 2: Convert to fraction form
1,553,135.72/2,329,704.54 = 431,204.84/x - Step 3: Cross multiply
1,553,135.72x = 2,329,704.54 × 431,204.84 - Step 4: Simplify right side
1,553,135.72x = 1,004,579,873,417.97 - Step 5: Solve for x
x = 1,004,579,873,417.97/1,553,135.72 - Step 6: Final answer
x = 646,807.53
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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.