Finding the Fourth Proportional to 2,963,748.79, 4,089,947.66 and 1,605,618.55
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Solution
The fourth proportional to 2,963,748.79, 4,089,947.66 and 1,605,618.55 is: 2,215,739.69
Step by Step Solution
- Step 1: Write the proportion equation
2,963,748.79 : 4,089,947.66 = 1,605,618.55 : x - Step 2: Convert to fraction form
2,963,748.79/4,089,947.66 = 1,605,618.55/x - Step 3: Cross multiply
2,963,748.79x = 4,089,947.66 × 1,605,618.55 - Step 4: Simplify right side
2,963,748.79x = 6,566,895,810,975.36 - Step 5: Solve for x
x = 6,566,895,810,975.36/2,963,748.79 - Step 6: Final answer
x = 2,215,739.69
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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.