Finding the Fourth Proportional to 420,410.28, 579,180.42 and 292,855.08
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Solution
The fourth proportional to 420,410.28, 579,180.42 and 292,855.08 is: 403,453.33
Step by Step Solution
- Step 1: Write the proportion equation
420,410.28 : 579,180.42 = 292,855.08 : x - Step 2: Convert to fraction form
420,410.28/579,180.42 = 292,855.08/x - Step 3: Cross multiply
420,410.28x = 579,180.42 × 292,855.08 - Step 4: Simplify right side
420,410.28x = 169,615,928,233.53 - Step 5: Solve for x
x = 169,615,928,233.53/420,410.28 - Step 6: Final answer
x = 403,453.33
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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.