Finding the Fourth Proportional to 784,602.75, 1,177,079.09 and 285,966.75
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Solution
The fourth proportional to 784,602.75, 1,177,079.09 and 285,966.75 is: 429,013.89
Step by Step Solution
- Step 1: Write the proportion equation
784,602.75 : 1,177,079.09 = 285,966.75 : x - Step 2: Convert to fraction form
784,602.75/1,177,079.09 = 285,966.75/x - Step 3: Cross multiply
784,602.75x = 1,177,079.09 × 285,966.75 - Step 4: Simplify right side
784,602.75x = 336,605,480,430.42 - Step 5: Solve for x
x = 336,605,480,430.42/784,602.75 - Step 6: Final answer
x = 429,013.89
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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.