Finding the Fourth Proportional to 813,238.74, 1,122,272.10 and 450,668.58
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Solution
The fourth proportional to 813,238.74, 1,122,272.10 and 450,668.58 is: 621,924.10
Step by Step Solution
- Step 1: Write the proportion equation
813,238.74 : 1,122,272.10 = 450,668.58 : x - Step 2: Convert to fraction form
813,238.74/1,122,272.10 = 450,668.58/x - Step 3: Cross multiply
813,238.74x = 1,122,272.10 × 450,668.58 - Step 4: Simplify right side
813,238.74x = 505,772,773,680.62 - Step 5: Solve for x
x = 505,772,773,680.62/813,238.74 - Step 6: Final answer
x = 621,924.10
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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.