Finding the Fourth Proportional to 684,458.99, 944,679.77 and 439,749.66
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Solution
The fourth proportional to 684,458.99, 944,679.77 and 439,749.66 is: 606,935.72
Step by Step Solution
- Step 1: Write the proportion equation
684,458.99 : 944,679.77 = 439,749.66 : x - Step 2: Convert to fraction form
684,458.99/944,679.77 = 439,749.66/x - Step 3: Cross multiply
684,458.99x = 944,679.77 × 439,749.66 - Step 4: Simplify right side
684,458.99x = 415,422,607,666.38 - Step 5: Solve for x
x = 415,422,607,666.38/684,458.99 - Step 6: Final answer
x = 606,935.72
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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.