Finding the Fourth Proportional to 949,635.19, 1,310,495.96 and 519,915.21
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Solution
The fourth proportional to 949,635.19, 1,310,495.96 and 519,915.21 is: 717,482.66
Step by Step Solution
- Step 1: Write the proportion equation
949,635.19 : 1,310,495.96 = 519,915.21 : x - Step 2: Convert to fraction form
949,635.19/1,310,495.96 = 519,915.21/x - Step 3: Cross multiply
949,635.19x = 1,310,495.96 × 519,915.21 - Step 4: Simplify right side
949,635.19x = 681,346,778,632.98 - Step 5: Solve for x
x = 681,346,778,632.98/949,635.19 - Step 6: Final answer
x = 717,482.66
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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.