Finding the Fourth Proportional to 808,336.72, 1,115,497.92 and 445,775.68
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Solution
The fourth proportional to 808,336.72, 1,115,497.92 and 445,775.68 is: 615,166.71
Step by Step Solution
- Step 1: Write the proportion equation
808,336.72 : 1,115,497.92 = 445,775.68 : x - Step 2: Convert to fraction form
808,336.72/1,115,497.92 = 445,775.68/x - Step 3: Cross multiply
808,336.72x = 1,115,497.92 × 445,775.68 - Step 4: Simplify right side
808,336.72x = 497,261,843,826.59 - Step 5: Solve for x
x = 497,261,843,826.59/808,336.72 - Step 6: Final answer
x = 615,166.71
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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.