Finding the Fourth Proportional to 555,793.99, 766,960.11 and 310,798.96
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Solution
The fourth proportional to 555,793.99, 766,960.11 and 310,798.96 is: 428,882.66
Step by Step Solution
- Step 1: Write the proportion equation
555,793.99 : 766,960.11 = 310,798.96 : x - Step 2: Convert to fraction form
555,793.99/766,960.11 = 310,798.96/x - Step 3: Cross multiply
555,793.99x = 766,960.11 × 310,798.96 - Step 4: Simplify right side
555,793.99x = 238,370,402,632.09 - Step 5: Solve for x
x = 238,370,402,632.09/555,793.99 - Step 6: Final answer
x = 428,882.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.