Finding the Fourth Proportional to 782,484.16, 1,174,162.35 and 422,647.75
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Solution
The fourth proportional to 782,484.16, 1,174,162.35 and 422,647.75 is: 634,207.18
Step by Step Solution
- Step 1: Write the proportion equation
782,484.16 : 1,174,162.35 = 422,647.75 : x - Step 2: Convert to fraction form
782,484.16/1,174,162.35 = 422,647.75/x - Step 3: Cross multiply
782,484.16x = 1,174,162.35 × 422,647.75 - Step 4: Simplify right side
782,484.16x = 496,257,075,362.21 - Step 5: Solve for x
x = 496,257,075,362.21/782,484.16 - Step 6: Final answer
x = 634,207.18
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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.