Finding the Fourth Proportional to 809,163.96, 1,212,731.01 and 429,146.74
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Solution
The fourth proportional to 809,163.96, 1,212,731.01 and 429,146.74 is: 643,181.83
Step by Step Solution
- Step 1: Write the proportion equation
809,163.96 : 1,212,731.01 = 429,146.74 : x - Step 2: Convert to fraction form
809,163.96/1,212,731.01 = 429,146.74/x - Step 3: Cross multiply
809,163.96x = 1,212,731.01 × 429,146.74 - Step 4: Simplify right side
809,163.96x = 520,439,559,438.41 - Step 5: Solve for x
x = 520,439,559,438.41/809,163.96 - Step 6: Final answer
x = 643,181.83
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.