Finding the Fourth Proportional to 419,323,324.60, 628,984,986.90 and 416,772,407.80
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Solution
The fourth proportional to 419,323,324.60, 628,984,986.90 and 416,772,407.80 is: 625,158,611.70
Step by Step Solution
- Step 1: Write the proportion equation
419,323,324.60 : 628,984,986.90 = 416,772,407.80 : x - Step 2: Convert to fraction form
419,323,324.60/628,984,986.90 = 416,772,407.80/x - Step 3: Cross multiply
419,323,324.60x = 628,984,986.90 × 416,772,407.80 - Step 4: Simplify right side
419,323,324.60x = 262,143,587,460,364,448 - Step 5: Solve for x
x = 262,143,587,460,364,448/419,323,324.60 - Step 6: Final answer
x = 625,158,611.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.