Finding the Fourth Proportional to 1,313,005.80, 1,811,946.24 and 709,393.80
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Solution
The fourth proportional to 1,313,005.80, 1,811,946.24 and 709,393.80 is: 978,962.49
Step by Step Solution
- Step 1: Write the proportion equation
1,313,005.80 : 1,811,946.24 = 709,393.80 : x - Step 2: Convert to fraction form
1,313,005.80/1,811,946.24 = 709,393.80/x - Step 3: Cross multiply
1,313,005.80x = 1,811,946.24 × 709,393.80 - Step 4: Simplify right side
1,313,005.80x = 1,285,383,428,589.31 - Step 5: Solve for x
x = 1,285,383,428,589.31/1,313,005.80 - Step 6: Final answer
x = 978,962.49
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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.