Finding the Fourth Proportional to 436,660.13, 654,990.14 and 121,117.04
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Solution
The fourth proportional to 436,660.13, 654,990.14 and 121,117.04 is: 181,675.54
Step by Step Solution
- Step 1: Write the proportion equation
436,660.13 : 654,990.14 = 121,117.04 : x - Step 2: Convert to fraction form
436,660.13/654,990.14 = 121,117.04/x - Step 3: Cross multiply
436,660.13x = 654,990.14 × 121,117.04 - Step 4: Simplify right side
436,660.13x = 79,330,466,985.99 - Step 5: Solve for x
x = 79,330,466,985.99/436,660.13 - Step 6: Final answer
x = 181,675.54
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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.