Finding the Fourth Proportional to 959,312.36, 1,438,717.95 and 285,212.14
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Solution
The fourth proportional to 959,312.36, 1,438,717.95 and 285,212.14 is: 427,743.70
Step by Step Solution
- Step 1: Write the proportion equation
959,312.36 : 1,438,717.95 = 285,212.14 : x - Step 2: Convert to fraction form
959,312.36/1,438,717.95 = 285,212.14/x - Step 3: Cross multiply
959,312.36x = 1,438,717.95 × 285,212.14 - Step 4: Simplify right side
959,312.36x = 410,339,821,779.12 - Step 5: Solve for x
x = 410,339,821,779.12/959,312.36 - Step 6: Final answer
x = 427,743.70
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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.