Finding the Fourth Proportional to 669,181.74, 918,348.38 and 664,457.82
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Solution
The fourth proportional to 669,181.74, 918,348.38 and 664,457.82 is: 911,865.53
Step by Step Solution
- Step 1: Write the proportion equation
669,181.74 : 918,348.38 = 664,457.82 : x - Step 2: Convert to fraction form
669,181.74/918,348.38 = 664,457.82/x - Step 3: Cross multiply
669,181.74x = 918,348.38 × 664,457.82 - Step 4: Simplify right side
669,181.74x = 610,203,759,253.04 - Step 5: Solve for x
x = 610,203,759,253.04/669,181.74 - Step 6: Final answer
x = 911,865.53
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.