Finding the Fourth Proportional to 855,781.44, 1,181,234.40 and 553,995.84
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Solution
The fourth proportional to 855,781.44, 1,181,234.40 and 553,995.84 is: 764,679.99
Step by Step Solution
- Step 1: Write the proportion equation
855,781.44 : 1,181,234.40 = 553,995.84 : x - Step 2: Convert to fraction form
855,781.44/1,181,234.40 = 553,995.84/x - Step 3: Cross multiply
855,781.44x = 1,181,234.40 × 553,995.84 - Step 4: Simplify right side
855,781.44x = 654,398,943,664.90 - Step 5: Solve for x
x = 654,398,943,664.90/855,781.44 - Step 6: Final answer
x = 764,679.99
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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.