Finding the Fourth Proportional to 683,582.99, 943,424.67 and 411,788.09
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Solution
The fourth proportional to 683,582.99, 943,424.67 and 411,788.09 is: 568,315.84
Step by Step Solution
- Step 1: Write the proportion equation
683,582.99 : 943,424.67 = 411,788.09 : x - Step 2: Convert to fraction form
683,582.99/943,424.67 = 411,788.09/x - Step 3: Cross multiply
683,582.99x = 943,424.67 × 411,788.09 - Step 4: Simplify right side
683,582.99x = 388,491,038,201.06 - Step 5: Solve for x
x = 388,491,038,201.06/683,582.99 - Step 6: Final answer
x = 568,315.84
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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.