Finding the Fourth Proportional to 636,534.99, 878,400.81 and 350,055.09
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Solution
The fourth proportional to 636,534.99, 878,400.81 and 350,055.09 is: 483,066.41
Step by Step Solution
- Step 1: Write the proportion equation
636,534.99 : 878,400.81 = 350,055.09 : x - Step 2: Convert to fraction form
636,534.99/878,400.81 = 350,055.09/x - Step 3: Cross multiply
636,534.99x = 878,400.81 × 350,055.09 - Step 4: Simplify right side
636,534.99x = 307,488,674,600.62 - Step 5: Solve for x
x = 307,488,674,600.62/636,534.99 - Step 6: Final answer
x = 483,066.41
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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.