Finding the Fourth Proportional to 813,203.05, 1,122,226.80 and 450,632.97
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Solution
The fourth proportional to 813,203.05, 1,122,226.80 and 450,632.97 is: 621,877.15
Step by Step Solution
- Step 1: Write the proportion equation
813,203.05 : 1,122,226.80 = 450,632.97 : x - Step 2: Convert to fraction form
813,203.05/1,122,226.80 = 450,632.97/x - Step 3: Cross multiply
813,203.05x = 1,122,226.80 × 450,632.97 - Step 4: Simplify right side
813,203.05x = 505,712,395,897.60 - Step 5: Solve for x
x = 505,712,395,897.60/813,203.05 - Step 6: Final answer
x = 621,877.15
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1.5x scale
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.