Finding the Fourth Proportional to 959,277.96, 1,438,579.12 and 319,407.92
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Solution
The fourth proportional to 959,277.96, 1,438,579.12 and 319,407.92 is: 478,999.40
Step by Step Solution
- Step 1: Write the proportion equation
959,277.96 : 1,438,579.12 = 319,407.92 : x - Step 2: Convert to fraction form
959,277.96/1,438,579.12 = 319,407.92/x - Step 3: Cross multiply
959,277.96x = 1,438,579.12 × 319,407.92 - Step 4: Simplify right side
959,277.96x = 459,493,564,474.63 - Step 5: Solve for x
x = 459,493,564,474.63/959,277.96 - Step 6: Final answer
x = 478,999.40
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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.