Finding the Fourth Proportional to 959,575.70, 1,438,051.35 and 638,815.70
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Solution
The fourth proportional to 959,575.70, 1,438,051.35 and 638,815.70 is: 957,349.98
Step by Step Solution
- Step 1: Write the proportion equation
959,575.70 : 1,438,051.35 = 638,815.70 : x - Step 2: Convert to fraction form
959,575.70/1,438,051.35 = 638,815.70/x - Step 3: Cross multiply
959,575.70x = 1,438,051.35 × 638,815.70 - Step 4: Simplify right side
959,575.70x = 918,649,779,786.20 - Step 5: Solve for x
x = 918,649,779,786.20/959,575.70 - Step 6: Final answer
x = 957,349.98
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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.