Finding the Fourth Proportional to 806,355.63, 1,112,748.38 and 457,559.55
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Solution
The fourth proportional to 806,355.63, 1,112,748.38 and 457,559.55 is: 631,419.47
Step by Step Solution
- Step 1: Write the proportion equation
806,355.63 : 1,112,748.38 = 457,559.55 : x - Step 2: Convert to fraction form
806,355.63/1,112,748.38 = 457,559.55/x - Step 3: Cross multiply
806,355.63x = 1,112,748.38 × 457,559.55 - Step 4: Simplify right side
806,355.63x = 509,148,645,728.23 - Step 5: Solve for x
x = 509,148,645,728.23/806,355.63 - Step 6: Final answer
x = 631,419.47
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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.