Finding the Fourth Proportional to 748,415.70, 1,122,623.55 and 748,415.70
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Solution
The fourth proportional to 748,415.70, 1,122,623.55 and 748,415.70 is: 1,122,623.55
Step by Step Solution
- Step 1: Write the proportion equation
748,415.70 : 1,122,623.55 = 748,415.70 : x - Step 2: Convert to fraction form
748,415.70/1,122,623.55 = 748,415.70/x - Step 3: Cross multiply
748,415.70x = 1,122,623.55 × 748,415.70 - Step 4: Simplify right side
748,415.70x = 840,189,090,009.74 - Step 5: Solve for x
x = 840,189,090,009.74/748,415.70 - Step 6: Final answer
x = 1,122,623.55
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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.