Finding the Fourth Proportional to 621,820.99, 858,182.61 and 349,955.02
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Solution
The fourth proportional to 621,820.99, 858,182.61 and 349,955.02 is: 482,977.12
Step by Step Solution
- Step 1: Write the proportion equation
621,820.99 : 858,182.61 = 349,955.02 : x - Step 2: Convert to fraction form
621,820.99/858,182.61 = 349,955.02/x - Step 3: Cross multiply
621,820.99x = 858,182.61 × 349,955.02 - Step 4: Simplify right side
621,820.99x = 300,325,312,446.20 - Step 5: Solve for x
x = 300,325,312,446.20/621,820.99 - Step 6: Final answer
x = 482,977.12
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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.