Finding the Fourth Proportional to 422,647.05, 583,312.74 and 261,554.00
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Solution
The fourth proportional to 422,647.05, 583,312.74 and 261,554.00 is: 360,981.53
Step by Step Solution
- Step 1: Write the proportion equation
422,647.05 : 583,312.74 = 261,554.00 : x - Step 2: Convert to fraction form
422,647.05/583,312.74 = 261,554.00/x - Step 3: Cross multiply
422,647.05x = 583,312.74 × 261,554.00 - Step 4: Simplify right side
422,647.05x = 152,567,777,481.40 - Step 5: Solve for x
x = 152,567,777,481.40/422,647.05 - Step 6: Final answer
x = 360,981.53
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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.