Finding the Fourth Proportional to 1,242,257.78, 1,714,305.38 and 698,395.98
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Solution
The fourth proportional to 1,242,257.78, 1,714,305.38 and 698,395.98 is: 963,780.63
Step by Step Solution
- Step 1: Write the proportion equation
1,242,257.78 : 1,714,305.38 = 698,395.98 : x - Step 2: Convert to fraction form
1,242,257.78/1,714,305.38 = 698,395.98/x - Step 3: Cross multiply
1,242,257.78x = 1,714,305.38 × 698,395.98 - Step 4: Simplify right side
1,242,257.78x = 1,197,263,985,884.37 - Step 5: Solve for x
x = 1,197,263,985,884.37/1,242,257.78 - Step 6: Final answer
x = 963,780.63
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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.