Finding the Fourth Proportional to 687,832.03, 949,211.99 and 381,904.03
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Solution
The fourth proportional to 687,832.03, 949,211.99 and 381,904.03 is: 527,029.66
Step by Step Solution
- Step 1: Write the proportion equation
687,832.03 : 949,211.99 = 381,904.03 : x - Step 2: Convert to fraction form
687,832.03/949,211.99 = 381,904.03/x - Step 3: Cross multiply
687,832.03x = 949,211.99 × 381,904.03 - Step 4: Simplify right side
687,832.03x = 362,507,882,395.80 - Step 5: Solve for x
x = 362,507,882,395.80/687,832.03 - Step 6: Final answer
x = 527,029.66
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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.