Finding the Fourth Proportional to 1,394,905.79, 1,924,969.02 and 783,059.74
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Solution
The fourth proportional to 1,394,905.79, 1,924,969.02 and 783,059.74 is: 1,080,621.89
Step by Step Solution
- Step 1: Write the proportion equation
1,394,905.79 : 1,924,969.02 = 783,059.74 : x - Step 2: Convert to fraction form
1,394,905.79/1,924,969.02 = 783,059.74/x - Step 3: Cross multiply
1,394,905.79x = 1,924,969.02 × 783,059.74 - Step 4: Simplify right side
1,394,905.79x = 1,507,365,732,560.36 - Step 5: Solve for x
x = 1,507,365,732,560.36/1,394,905.79 - Step 6: Final answer
x = 1,080,621.89
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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.