Finding the Fourth Proportional to 486,000.99, 670,681.79 and 271,141.10
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Solution
The fourth proportional to 486,000.99, 670,681.79 and 271,141.10 is: 374,174.95
Step by Step Solution
- Step 1: Write the proportion equation
486,000.99 : 670,681.79 = 271,141.10 : x - Step 2: Convert to fraction form
486,000.99/670,681.79 = 271,141.10/x - Step 3: Cross multiply
486,000.99x = 670,681.79 × 271,141.10 - Step 4: Simplify right side
486,000.99x = 181,849,396,934.86 - Step 5: Solve for x
x = 181,849,396,934.86/486,000.99 - Step 6: Final answer
x = 374,174.95
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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.