Finding the Fourth Proportional to 813,242, 1,122,276.58 and 450,671.82
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Solution
The fourth proportional to 813,242, 1,122,276.58 and 450,671.82 is: 621,928.56
Step by Step Solution
- Step 1: Write the proportion equation
813,242 : 1,122,276.58 = 450,671.82 : x - Step 2: Convert to fraction form
813,242/1,122,276.58 = 450,671.82/x - Step 3: Cross multiply
813,242x = 1,122,276.58 × 450,671.82 - Step 4: Simplify right side
813,242x = 505,778,428,851.98 - Step 5: Solve for x
x = 505,778,428,851.98/813,242 - Step 6: Final answer
x = 621,928.56
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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.