Finding the Fourth Proportional to 611,576.10, 917,801.55 and 256,844.70
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Solution
The fourth proportional to 611,576.10, 917,801.55 and 256,844.70 is: 385,450.75
Step by Step Solution
- Step 1: Write the proportion equation
611,576.10 : 917,801.55 = 256,844.70 : x - Step 2: Convert to fraction form
611,576.10/917,801.55 = 256,844.70/x - Step 3: Cross multiply
611,576.10x = 917,801.55 × 256,844.70 - Step 4: Simplify right side
611,576.10x = 235,732,463,769.29 - Step 5: Solve for x
x = 235,732,463,769.29/611,576.10 - Step 6: Final answer
x = 385,450.75
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1.5x scale
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.