Finding the Fourth Proportional to 687,805.44, 949,201.16 and 381,881.84
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Solution
The fourth proportional to 687,805.44, 949,201.16 and 381,881.84 is: 527,013.40
Step by Step Solution
- Step 1: Write the proportion equation
687,805.44 : 949,201.16 = 381,881.84 : x - Step 2: Convert to fraction form
687,805.44/949,201.16 = 381,881.84/x - Step 3: Cross multiply
687,805.44x = 949,201.16 × 381,881.84 - Step 4: Simplify right side
687,805.44x = 362,482,683,847.08 - Step 5: Solve for x
x = 362,482,683,847.08/687,805.44 - Step 6: Final answer
x = 527,013.40
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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.