Finding the Fourth Proportional to 605,237.20, 906,543.60 and 392,660.80
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Solution
The fourth proportional to 605,237.20, 906,543.60 and 392,660.80 is: 588,139.88
Step by Step Solution
- Step 1: Write the proportion equation
605,237.20 : 906,543.60 = 392,660.80 : x - Step 2: Convert to fraction form
605,237.20/906,543.60 = 392,660.80/x - Step 3: Cross multiply
605,237.20x = 906,543.60 × 392,660.80 - Step 4: Simplify right side
605,237.20x = 355,964,135,210.88 - Step 5: Solve for x
x = 355,964,135,210.88/605,237.20 - Step 6: Final answer
x = 588,139.88
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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.