Finding the Fourth Proportional to 862,077.21, 1,189,703.45 and 480,103.99
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Solution
The fourth proportional to 862,077.21, 1,189,703.45 and 480,103.99 is: 662,564.06
Step by Step Solution
- Step 1: Write the proportion equation
862,077.21 : 1,189,703.45 = 480,103.99 : x - Step 2: Convert to fraction form
862,077.21/1,189,703.45 = 480,103.99/x - Step 3: Cross multiply
862,077.21x = 1,189,703.45 × 480,103.99 - Step 4: Simplify right side
862,077.21x = 571,181,369,593.54 - Step 5: Solve for x
x = 571,181,369,593.54/862,077.21 - Step 6: Final answer
x = 662,564.06
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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.