Finding the Fourth Proportional to 1,242,329.98, 1,714,405.18 and 783,740.78
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Solution
The fourth proportional to 1,242,329.98, 1,714,405.18 and 783,740.78 is: 1,081,555.85
Step by Step Solution
- Step 1: Write the proportion equation
1,242,329.98 : 1,714,405.18 = 783,740.78 : x - Step 2: Convert to fraction form
1,242,329.98/1,714,405.18 = 783,740.78/x - Step 3: Cross multiply
1,242,329.98x = 1,714,405.18 × 783,740.78 - Step 4: Simplify right side
1,242,329.98x = 1,343,649,253,009.24 - Step 5: Solve for x
x = 1,343,649,253,009.24/1,242,329.98 - Step 6: Final answer
x = 1,081,555.85
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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.