Finding the Fourth Proportional to 1,152,828.55, 1,729,305.87 and 478,977.99
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Solution
The fourth proportional to 1,152,828.55, 1,729,305.87 and 478,977.99 is: 718,493.18
Step by Step Solution
- Step 1: Write the proportion equation
1,152,828.55 : 1,729,305.87 = 478,977.99 : x - Step 2: Convert to fraction form
1,152,828.55/1,729,305.87 = 478,977.99/x - Step 3: Cross multiply
1,152,828.55x = 1,729,305.87 × 478,977.99 - Step 4: Simplify right side
1,152,828.55x = 828,299,449,707.80 - Step 5: Solve for x
x = 828,299,449,707.80/1,152,828.55 - Step 6: Final answer
x = 718,493.18
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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.