Finding the Fourth Proportional to 755,526.70, 1,133,290.05 and 256,890.70
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Solution
The fourth proportional to 755,526.70, 1,133,290.05 and 256,890.70 is: 385,336.05
Step by Step Solution
- Step 1: Write the proportion equation
755,526.70 : 1,133,290.05 = 256,890.70 : x - Step 2: Convert to fraction form
755,526.70/1,133,290.05 = 256,890.70/x - Step 3: Cross multiply
755,526.70x = 1,133,290.05 × 256,890.70 - Step 4: Simplify right side
755,526.70x = 291,131,674,247.54 - Step 5: Solve for x
x = 291,131,674,247.54/755,526.70 - Step 6: Final answer
x = 385,336.05
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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.