Finding the Fourth Proportional to 705,426.41, 973,767.62 and 490,691.09
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Solution
The fourth proportional to 705,426.41, 973,767.62 and 490,691.09 is: 677,347.90
Step by Step Solution
- Step 1: Write the proportion equation
705,426.41 : 973,767.62 = 490,691.09 : x - Step 2: Convert to fraction form
705,426.41/973,767.62 = 490,691.09/x - Step 3: Cross multiply
705,426.41x = 973,767.62 × 490,691.09 - Step 4: Simplify right side
705,426.41x = 477,819,094,864.51 - Step 5: Solve for x
x = 477,819,094,864.51/705,426.41 - Step 6: Final answer
x = 677,347.90
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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.