Finding the Fourth Proportional to 399,811.20, 599,716.80 and 104,323.20
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Solution
The fourth proportional to 399,811.20, 599,716.80 and 104,323.20 is: 156,484.80
Step by Step Solution
- Step 1: Write the proportion equation
399,811.20 : 599,716.80 = 104,323.20 : x - Step 2: Convert to fraction form
399,811.20/599,716.80 = 104,323.20/x - Step 3: Cross multiply
399,811.20x = 599,716.80 × 104,323.20 - Step 4: Simplify right side
399,811.20x = 62,564,375,669.76 - Step 5: Solve for x
x = 62,564,375,669.76/399,811.20 - Step 6: Final answer
x = 156,484.80
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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.