Finding the Fourth Proportional to 1,804,643.12, 2,490,408.11 and 988,840.18
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Solution
The fourth proportional to 1,804,643.12, 2,490,408.11 and 988,840.18 is: 1,364,599.78
Step by Step Solution
- Step 1: Write the proportion equation
1,804,643.12 : 2,490,408.11 = 988,840.18 : x - Step 2: Convert to fraction form
1,804,643.12/2,490,408.11 = 988,840.18/x - Step 3: Cross multiply
1,804,643.12x = 2,490,408.11 × 988,840.18 - Step 4: Simplify right side
1,804,643.12x = 2,462,615,603,765.86 - Step 5: Solve for x
x = 2,462,615,603,765.86/1,804,643.12 - Step 6: Final answer
x = 1,364,599.78
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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.