Finding the Fourth Proportional to 521,490.44, 719,657.10 and 283,026.44
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Solution
The fourth proportional to 521,490.44, 719,657.10 and 283,026.44 is: 390,576.65
Step by Step Solution
- Step 1: Write the proportion equation
521,490.44 : 719,657.10 = 283,026.44 : x - Step 2: Convert to fraction form
521,490.44/719,657.10 = 283,026.44/x - Step 3: Cross multiply
521,490.44x = 719,657.10 × 283,026.44 - Step 4: Simplify right side
521,490.44x = 203,681,987,033.72 - Step 5: Solve for x
x = 203,681,987,033.72/521,490.44 - Step 6: Final answer
x = 390,576.65
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1.5x scale
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.