Finding the Fourth Proportional to 813,257.57, 1,122,281.74 and 450,680.69
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Solution
The fourth proportional to 813,257.57, 1,122,281.74 and 450,680.69 is: 621,931.76
Step by Step Solution
- Step 1: Write the proportion equation
813,257.57 : 1,122,281.74 = 450,680.69 : x - Step 2: Convert to fraction form
813,257.57/1,122,281.74 = 450,680.69/x - Step 3: Cross multiply
813,257.57x = 1,122,281.74 × 450,680.69 - Step 4: Simplify right side
813,257.57x = 505,790,708,957.60 - Step 5: Solve for x
x = 505,790,708,957.60/813,257.57 - Step 6: Final answer
x = 621,931.76
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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.