Finding the Fourth Proportional to 1,555,878.24, 2,147,108.76 and 840,486.24
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Solution
The fourth proportional to 1,555,878.24, 2,147,108.76 and 840,486.24 is: 1,159,869.28
Step by Step Solution
- Step 1: Write the proportion equation
1,555,878.24 : 2,147,108.76 = 840,486.24 : x - Step 2: Convert to fraction form
1,555,878.24/2,147,108.76 = 840,486.24/x - Step 3: Cross multiply
1,555,878.24x = 2,147,108.76 × 840,486.24 - Step 4: Simplify right side
1,555,878.24x = 1,804,615,368,563.46 - Step 5: Solve for x
x = 1,804,615,368,563.46/1,555,878.24 - Step 6: Final answer
x = 1,159,869.28
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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.