Finding the Fourth Proportional to 813,202.05, 1,122,225.42 and 450,631.97
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Solution
The fourth proportional to 813,202.05, 1,122,225.42 and 450,631.97 is: 621,875.76
Step by Step Solution
- Step 1: Write the proportion equation
813,202.05 : 1,122,225.42 = 450,631.97 : x - Step 2: Convert to fraction form
813,202.05/1,122,225.42 = 450,631.97/x - Step 3: Cross multiply
813,202.05x = 1,122,225.42 × 450,631.97 - Step 4: Simplify right side
813,202.05x = 505,710,646,187.55 - Step 5: Solve for x
x = 505,710,646,187.55/813,202.05 - Step 6: Final answer
x = 621,875.76
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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.