Finding the Fourth Proportional to 478,343.19, 717,515.68 and 449,113.94
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Solution
The fourth proportional to 478,343.19, 717,515.68 and 449,113.94 is: 673,671.75
Step by Step Solution
- Step 1: Write the proportion equation
478,343.19 : 717,515.68 = 449,113.94 : x - Step 2: Convert to fraction form
478,343.19/717,515.68 = 449,113.94/x - Step 3: Cross multiply
478,343.19x = 717,515.68 × 449,113.94 - Step 4: Simplify right side
478,343.19x = 322,246,294,056.58 - Step 5: Solve for x
x = 322,246,294,056.58/478,343.19 - Step 6: Final answer
x = 673,671.75
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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.