Finding the Fourth Proportional to 509,916.60, 764,218.80 and 310,024.80
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Solution
The fourth proportional to 509,916.60, 764,218.80 and 310,024.80 is: 464,638.30
Step by Step Solution
- Step 1: Write the proportion equation
509,916.60 : 764,218.80 = 310,024.80 : x - Step 2: Convert to fraction form
509,916.60/764,218.80 = 310,024.80/x - Step 3: Cross multiply
509,916.60x = 764,218.80 × 310,024.80 - Step 4: Simplify right side
509,916.60x = 236,926,780,626.24 - Step 5: Solve for x
x = 236,926,780,626.24/509,916.60 - Step 6: Final answer
x = 464,638.30
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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.