Finding the Fourth Proportional to 813,240.74, 1,122,274.86 and 450,670.58
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Solution
The fourth proportional to 813,240.74, 1,122,274.86 and 450,670.58 is: 621,926.86
Step by Step Solution
- Step 1: Write the proportion equation
813,240.74 : 1,122,274.86 = 450,670.58 : x - Step 2: Convert to fraction form
813,240.74/1,122,274.86 = 450,670.58/x - Step 3: Cross multiply
813,240.74x = 1,122,274.86 × 450,670.58 - Step 4: Simplify right side
813,240.74x = 505,776,262,075.62 - Step 5: Solve for x
x = 505,776,262,075.62/813,240.74 - Step 6: Final answer
x = 621,926.86
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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.