Finding the Fourth Proportional to 1,785,828.48, 2,678,726.40 and 720,115.84
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Solution
The fourth proportional to 1,785,828.48, 2,678,726.40 and 720,115.84 is: 1,080,167.18
Step by Step Solution
- Step 1: Write the proportion equation
1,785,828.48 : 2,678,726.40 = 720,115.84 : x - Step 2: Convert to fraction form
1,785,828.48/2,678,726.40 = 720,115.84/x - Step 3: Cross multiply
1,785,828.48x = 2,678,726.40 × 720,115.84 - Step 4: Simplify right side
1,785,828.48x = 1,928,993,311,666.18 - Step 5: Solve for x
x = 1,928,993,311,666.18/1,785,828.48 - Step 6: Final answer
x = 1,080,167.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.