Finding the Fourth Proportional to 745,747.28, 1,029,102.21 and 455,844.23
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Solution
The fourth proportional to 745,747.28, 1,029,102.21 and 455,844.23 is: 629,047.29
Step by Step Solution
- Step 1: Write the proportion equation
745,747.28 : 1,029,102.21 = 455,844.23 : x - Step 2: Convert to fraction form
745,747.28/1,029,102.21 = 455,844.23/x - Step 3: Cross multiply
745,747.28x = 1,029,102.21 × 455,844.23 - Step 4: Simplify right side
745,747.28x = 469,110,304,508.75 - Step 5: Solve for x
x = 469,110,304,508.75/745,747.28 - Step 6: Final answer
x = 629,047.29
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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.