Finding the Fourth Proportional to 769,461.98, 1,153,829.71 and 449,705.58
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Solution
The fourth proportional to 769,461.98, 1,153,829.71 and 449,705.58 is: 674,346.07
Step by Step Solution
- Step 1: Write the proportion equation
769,461.98 : 1,153,829.71 = 449,705.58 : x - Step 2: Convert to fraction form
769,461.98/1,153,829.71 = 449,705.58/x - Step 3: Cross multiply
769,461.98x = 1,153,829.71 × 449,705.58 - Step 4: Simplify right side
769,461.98x = 518,883,658,956.78 - Step 5: Solve for x
x = 518,883,658,956.78/769,461.98 - Step 6: Final answer
x = 674,346.07
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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.