Finding the Fourth Proportional to 673,136.21, 928,844.58 and 411,622.95
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Solution
The fourth proportional to 673,136.21, 928,844.58 and 411,622.95 is: 567,988.68
Step by Step Solution
- Step 1: Write the proportion equation
673,136.21 : 928,844.58 = 411,622.95 : x - Step 2: Convert to fraction form
673,136.21/928,844.58 = 411,622.95/x - Step 3: Cross multiply
673,136.21x = 928,844.58 × 411,622.95 - Step 4: Simplify right side
673,136.21x = 382,333,746,111.11 - Step 5: Solve for x
x = 382,333,746,111.11/673,136.21 - Step 6: Final answer
x = 567,988.68
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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.