Finding the Fourth Proportional to 813,207.13, 1,122,232.43 and 450,637
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Solution
The fourth proportional to 813,207.13, 1,122,232.43 and 450,637 is: 621,882.71
Step by Step Solution
- Step 1: Write the proportion equation
813,207.13 : 1,122,232.43 = 450,637 : x - Step 2: Convert to fraction form
813,207.13/1,122,232.43 = 450,637/x - Step 3: Cross multiply
813,207.13x = 1,122,232.43 × 450,637 - Step 4: Simplify right side
813,207.13x = 505,719,455,557.91 - Step 5: Solve for x
x = 505,719,455,557.91/813,207.13 - Step 6: Final answer
x = 621,882.71
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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.