Finding the Fourth Proportional to 638,013.52, 957,156.36 and 318,337.28
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Solution
The fourth proportional to 638,013.52, 957,156.36 and 318,337.28 is: 477,573.82
Step by Step Solution
- Step 1: Write the proportion equation
638,013.52 : 957,156.36 = 318,337.28 : x - Step 2: Convert to fraction form
638,013.52/957,156.36 = 318,337.28/x - Step 3: Cross multiply
638,013.52x = 957,156.36 × 318,337.28 - Step 4: Simplify right side
638,013.52x = 304,698,552,177.10 - Step 5: Solve for x
x = 304,698,552,177.10/638,013.52 - Step 6: Final answer
x = 477,573.82
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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.