Finding the Fourth Proportional to 578,174.65, 867,257.10 and 451,921.09
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Solution
The fourth proportional to 578,174.65, 867,257.10 and 451,921.09 is: 677,877.82
Step by Step Solution
- Step 1: Write the proportion equation
578,174.65 : 867,257.10 = 451,921.09 : x - Step 2: Convert to fraction form
578,174.65/867,257.10 = 451,921.09/x - Step 3: Cross multiply
578,174.65x = 867,257.10 × 451,921.09 - Step 4: Simplify right side
578,174.65x = 391,931,773,942.24 - Step 5: Solve for x
x = 391,931,773,942.24/578,174.65 - Step 6: Final answer
x = 677,877.82
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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.