Finding the Fourth Proportional to 808,574.77, 1,115,813.64 and 445,990.84
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Solution
The fourth proportional to 808,574.77, 1,115,813.64 and 445,990.84 is: 615,456.58
Step by Step Solution
- Step 1: Write the proportion equation
808,574.77 : 1,115,813.64 = 445,990.84 : x - Step 2: Convert to fraction form
808,574.77/1,115,813.64 = 445,990.84/x - Step 3: Cross multiply
808,574.77x = 1,115,813.64 × 445,990.84 - Step 4: Simplify right side
808,574.77x = 497,642,662,587.06 - Step 5: Solve for x
x = 497,642,662,587.06/808,574.77 - Step 6: Final answer
x = 615,456.58
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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.