Finding the Fourth Proportional to 2,157,316.47, 2,977,077.99 and 1,177,274.89
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Solution
The fourth proportional to 2,157,316.47, 2,977,077.99 and 1,177,274.89 is: 1,624,629.12
Step by Step Solution
- Step 1: Write the proportion equation
2,157,316.47 : 2,977,077.99 = 1,177,274.89 : x - Step 2: Convert to fraction form
2,157,316.47/2,977,077.99 = 1,177,274.89/x - Step 3: Cross multiply
2,157,316.47x = 2,977,077.99 × 1,177,274.89 - Step 4: Simplify right side
2,157,316.47x = 3,504,839,168,023.71 - Step 5: Solve for x
x = 3,504,839,168,023.71/2,157,316.47 - Step 6: Final answer
x = 1,624,629.12
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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.