Finding the Fourth Proportional to 1,008,027.18, 1,391,077.40 and 555,318.18
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Solution
The fourth proportional to 1,008,027.18, 1,391,077.40 and 555,318.18 is: 766,339.03
Step by Step Solution
- Step 1: Write the proportion equation
1,008,027.18 : 1,391,077.40 = 555,318.18 : x - Step 2: Convert to fraction form
1,008,027.18/1,391,077.40 = 555,318.18/x - Step 3: Cross multiply
1,008,027.18x = 1,391,077.40 × 555,318.18 - Step 4: Simplify right side
1,008,027.18x = 772,490,567,230.54 - Step 5: Solve for x
x = 772,490,567,230.54/1,008,027.18 - Step 6: Final answer
x = 766,339.03
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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.