Finding the Fourth Proportional to 1,487,138.48, 2,052,263.40 and 808,074.98
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Solution
The fourth proportional to 1,487,138.48, 2,052,263.40 and 808,074.98 is: 1,115,150.15
Step by Step Solution
- Step 1: Write the proportion equation
1,487,138.48 : 2,052,263.40 = 808,074.98 : x - Step 2: Convert to fraction form
1,487,138.48/2,052,263.40 = 808,074.98/x - Step 3: Cross multiply
1,487,138.48x = 2,052,263.40 × 808,074.98 - Step 4: Simplify right side
1,487,138.48x = 1,658,382,691,608.04 - Step 5: Solve for x
x = 1,658,382,691,608.04/1,487,138.48 - Step 6: Final answer
x = 1,115,150.15
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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.