Finding the Fourth Proportional to 461,410.09, 636,747.48 and 257,457.31
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Solution
The fourth proportional to 461,410.09, 636,747.48 and 257,457.31 is: 355,291.96
Step by Step Solution
- Step 1: Write the proportion equation
461,410.09 : 636,747.48 = 257,457.31 : x - Step 2: Convert to fraction form
461,410.09/636,747.48 = 257,457.31/x - Step 3: Cross multiply
461,410.09x = 636,747.48 × 257,457.31 - Step 4: Simplify right side
461,410.09x = 163,935,293,350.08 - Step 5: Solve for x
x = 163,935,293,350.08/461,410.09 - Step 6: Final answer
x = 355,291.96
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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.