Finding the Fourth Proportional to 906,400.23, 1,360,199.30 and 426,765.19
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Solution
The fourth proportional to 906,400.23, 1,360,199.30 and 426,765.19 is: 640,429.80
Step by Step Solution
- Step 1: Write the proportion equation
906,400.23 : 1,360,199.30 = 426,765.19 : x - Step 2: Convert to fraction form
906,400.23/1,360,199.30 = 426,765.19/x - Step 3: Cross multiply
906,400.23x = 1,360,199.30 × 426,765.19 - Step 4: Simplify right side
906,400.23x = 580,485,712,118.97 - Step 5: Solve for x
x = 580,485,712,118.97/906,400.23 - Step 6: Final answer
x = 640,429.80
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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.