Finding the Fourth Proportional to 813,420.60, 1,122,587.60 and 450,958.14
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Solution
The fourth proportional to 813,420.60, 1,122,587.60 and 450,958.14 is: 622,359.47
Step by Step Solution
- Step 1: Write the proportion equation
813,420.60 : 1,122,587.60 = 450,958.14 : x - Step 2: Convert to fraction form
813,420.60/1,122,587.60 = 450,958.14/x - Step 3: Cross multiply
813,420.60x = 1,122,587.60 × 450,958.14 - Step 4: Simplify right side
813,420.60x = 506,240,016,083.06 - Step 5: Solve for x
x = 506,240,016,083.06/813,420.60 - Step 6: Final answer
x = 622,359.47
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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.