Finding the Fourth Proportional to 808,315.92, 1,115,539.56 and 445,772.88
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Solution
The fourth proportional to 808,315.92, 1,115,539.56 and 445,772.88 is: 615,201.64
Step by Step Solution
- Step 1: Write the proportion equation
808,315.92 : 1,115,539.56 = 445,772.88 : x - Step 2: Convert to fraction form
808,315.92/1,115,539.56 = 445,772.88/x - Step 3: Cross multiply
808,315.92x = 1,115,539.56 × 445,772.88 - Step 4: Simplify right side
808,315.92x = 497,277,282,415.13 - Step 5: Solve for x
x = 497,277,282,415.13/808,315.92 - Step 6: Final answer
x = 615,201.64
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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.