Finding the Fourth Proportional to 564,312.11, 778,749.05 and 306,187.97
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Solution
The fourth proportional to 564,312.11, 778,749.05 and 306,187.97 is: 422,538.50
Step by Step Solution
- Step 1: Write the proportion equation
564,312.11 : 778,749.05 = 306,187.97 : x - Step 2: Convert to fraction form
564,312.11/778,749.05 = 306,187.97/x - Step 3: Cross multiply
564,312.11x = 778,749.05 × 306,187.97 - Step 4: Simplify right side
564,312.11x = 238,443,587,630.65 - Step 5: Solve for x
x = 238,443,587,630.65/564,312.11 - Step 6: Final answer
x = 422,538.50
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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.