Finding the Fourth Proportional to 684,457.99, 944,678.39 and 439,748.66
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Solution
The fourth proportional to 684,457.99, 944,678.39 and 439,748.66 is: 606,934.33
Step by Step Solution
- Step 1: Write the proportion equation
684,457.99 : 944,678.39 = 439,748.66 : x - Step 2: Convert to fraction form
684,457.99/944,678.39 = 439,748.66/x - Step 3: Cross multiply
684,457.99x = 944,678.39 × 439,748.66 - Step 4: Simplify right side
684,457.99x = 415,421,053,456.18 - Step 5: Solve for x
x = 415,421,053,456.18/684,457.99 - Step 6: Final answer
x = 606,934.33
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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.