Finding the Fourth Proportional to 498,061.09, 687,321.09 and 283,201.13
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Solution
The fourth proportional to 498,061.09, 687,321.09 and 283,201.13 is: 390,815.74
Step by Step Solution
- Step 1: Write the proportion equation
498,061.09 : 687,321.09 = 283,201.13 : x - Step 2: Convert to fraction form
498,061.09/687,321.09 = 283,201.13/x - Step 3: Cross multiply
498,061.09x = 687,321.09 × 283,201.13 - Step 4: Simplify right side
498,061.09x = 194,650,111,079.13 - Step 5: Solve for x
x = 194,650,111,079.13/498,061.09 - Step 6: Final answer
x = 390,815.74
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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.