Finding the Fourth Proportional to 813,365.40, 1,122,444.36 and 450,812.64
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Solution
The fourth proportional to 813,365.40, 1,122,444.36 and 450,812.64 is: 622,121.50
Step by Step Solution
- Step 1: Write the proportion equation
813,365.40 : 1,122,444.36 = 450,812.64 : x - Step 2: Convert to fraction form
813,365.40/1,122,444.36 = 450,812.64/x - Step 3: Cross multiply
813,365.40x = 1,122,444.36 × 450,812.64 - Step 4: Simplify right side
813,365.40x = 506,012,105,184.71 - Step 5: Solve for x
x = 506,012,105,184.71/813,365.40 - Step 6: Final answer
x = 622,121.50
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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.